177 results match your criteria Acta radiologica open[Journal]


The "birth of death": MRI step-by-step reveals the early appearance of a bone marrow infarct.

Acta Radiol Open 2019 Mar 27;8(3):2058460119834691. Epub 2019 Mar 27.

Cliniques universitaires Saint-Luc, Institut de recherche expérimentale et clinique, Université Catholique de Louvain, Louvain, Brussels, Belgium.

The magnetic resonance imaging (MRI) appearance of an "established" bone marrow infarct is well-known, consisting of an area of preserved bone marrow signal surrounded by a serpiginous line. We report the uncommon observation of the very early phases of appearance of a bone marrow infarct, showing its progressive de novo appearance on MR images paralleling clinical symptoms and high-dose systemic steroid administration in a young female patient, presenting with acute knee pain. The initial knee MR examination performed one week after pain onset showed no abnormality. Read More

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http://dx.doi.org/10.1177/2058460119834691DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6440034PMC
March 2019
2 Reads

Computer-aided pancreas segmentation based on 3D GRE Dixon MRI: a feasibility study.

Acta Radiol Open 2019 Mar 27;8(3):2058460119834690. Epub 2019 Mar 27.

Department of Radiology, Changhai Hospital of Shanghai, The Second Medical University, Shanghai, PR China.

Background: Pancreas segmentation is of great significance for pancreatic cancer radiotherapy positioning, pancreatic structure, and function evaluation.

Purpose: To investigate the feasibility of computer-aided pancreas segmentation based on optimized three-dimensional (3D) Dixon magnetic resonance imaging (MRI).

Material And Methods: Seventeen healthy volunteers (13 men, 4 women; mean age = 53. Read More

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http://dx.doi.org/10.1177/2058460119834690DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6440072PMC
March 2019
2 Reads

New subspecialty or close ally emerging on the radiology horizon: Artificial Intelligence.

Authors:
Emre Pakdemirli

Acta Radiol Open 2019 Mar 22;8(3):2058460119837498. Epub 2019 Mar 22.

West Hertfordshire NHS Trust, St. Albans City Hospital, St. Albans, UK.

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http://dx.doi.org/10.1177/2058460119837498DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431767PMC
March 2019
1 Read

A new breast tomosynthesis imaging method: Continuous Sync-and-Shoot - technical feasibility and initial experience.

Acta Radiol Open 2019 Mar 15;8(3):2058460119836255. Epub 2019 Mar 15.

Turku University Hospital, Turku, Finland.

Background: Digital breast tomosynthesis (DBT) is gaining popularity in breast imaging. There are several different technical approaches for conducting DBT imaging.

Purpose: To determine optimal imaging parameters, test patient friendliness, evaluate the initial diagnostic performance, and describe diagnostic advances possible with the new Continuous Sync-and-Shoot method. Read More

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http://dx.doi.org/10.1177/2058460119836255DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6421620PMC
March 2019
2 Reads

Neck movement during cervical transforaminal epidural injections and the position of the vertebral artery: an anatomical study.

Acta Radiol Open 2019 Mar 12;8(3):2058460119834688. Epub 2019 Mar 12.

Seattle Science Foundation, Seattle, WA, USA.

Background: Cervical transforaminal epidural steroid injections (CTFESIs) are sometimes performed in patients with cervical radiculopathy secondary to nerve-root compression. Neck movements for patient positioning may include rotation, flexion, and extension. As physicians performing such procedures do not move the neck for fear of injuring the vertebral artery, we performed fluoroscopy and cadaveric dissection to analyze any movement of the vertebral artery during head movement and its relation to the foramina in the setting of CTFESI. Read More

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http://dx.doi.org/10.1177/2058460119834688DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415478PMC
March 2019
2 Reads

Artificial intelligence in radiology: friend or foe? Where are we now and where are we heading?

Authors:
Emre Pakdemirli

Acta Radiol Open 2019 Feb 21;8(2):2058460119830222. Epub 2019 Feb 21.

West Hertfordshire Hospitals NHS Trust, St. Albans City Hospital, St. Albans, UK.

The use of artificial intelligence (AI) has been rapidly progressing in medicine, particularly in radiology. AI has also been the source of great innovation and a prominent topic of discussion within radiology societies and ground-breaking research in recent years. Despite the risks and quality assurance issues involved in AI, it offers tremendous opportunities for changing how radiological services are delivered. Read More

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http://dx.doi.org/10.1177/2058460119830222DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385326PMC
February 2019

Visualization of the peripheral vascularity by time-resolved computed tomography: a case report.

Acta Radiol Open 2019 Jan 31;8(1):2058460118820059. Epub 2019 Jan 31.

Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Division of Medical Imaging and Technology, Stockholm, Sweden.

Runoff computed tomography angiography (CTA) is commonly used to diagnose peripheral artery disease (PAD) of the lower extremities. However, the risk of non-conclusive examination due to suboptimal timing and overrunning the contrast medium bolus is a major pitfall that must be considered. Here we describe two case studies using dynamic time-resolved CTA imaging of the peripheral vascularity. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118820059
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http://dx.doi.org/10.1177/2058460118820059DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6357294PMC
January 2019
4 Reads

Symptomatic calcification of the lateral collateral ligament: a case report.

Acta Radiol Open 2018 Dec 19;7(12):2058460118813635. Epub 2018 Dec 19.

Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan.

Symptomatic calcification is an entity in which hydroxyapatite calcific deposits cause inflammation, then burst and dissolve into the surrounding structures. Although a well-known pathologic condition in the rotator cuff tendons, it can also occur in other structures of the locomotor system. Radiographs are usually taken at the initial examination but can also be useful for follow-up evaluation of the course of the calcified matter. Read More

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http://dx.doi.org/10.1177/2058460118813635DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6302277PMC
December 2018

Charcoal granuloma mimicking breast cancer: an emerging diagnosis.

Acta Radiol Open 2018 Dec 6;7(12):2058460118815726. Epub 2018 Dec 6.

Department of Gynecology, Hospital de Clinicas, Federal University of Parana, Curitiba, Brazil.

Background: Image-guided charcoal injection in suspicious breast lesions for preoperative localization is a procedure that has been increasing over the years because it is safer, faster, and more affordable when compared to needle-wire preoperative localization. To date, no complications have been associated with the method. However, in recent years there have been some reports about charcoal granulomas mimicking malignant lesions in some postoperative patients or in a conservative follow-up. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118815726
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http://dx.doi.org/10.1177/2058460118815726DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6299914PMC
December 2018
2 Reads

An unusual case of tuberous sclerosis incidentally discovered in adulthood: case report and review of the literature.

Acta Radiol Open 2018 Dec 6;7(12):2058460118806328. Epub 2018 Dec 6.

Department of Advanced Biomedical Sciences, University "Federico II," Naples, Italy.

Tuberous sclerosis (TS) is a relatively rare multi-organ disorder generally diagnosed in infancy and described as a clinical triad of sebaceous adenoma, mental retardation, and seizures. Angiomyolipoma (AML) is the most common benign renal tumor usually found incidentally as a solitary small echogenic lesion on grayscale ultrasound. Less commonly, it is part of the TS complex and is seen as multiple lesions in both kidneys. Read More

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http://dx.doi.org/10.1177/2058460118806328DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6299912PMC
December 2018
2 Reads

Use of a micro-balloon catheter in transcatheter arterial embolization of the renal artery for recurrence of symptoms of autosomal dominant polycystic kidney disease.

Acta Radiol Open 2018 Dec 10;7(12):2058460118818849. Epub 2018 Dec 10.

Department of Radiology, Kochi University, Kochi Medical School Kohasu, Oko-cho, Nankoku, Kochi, Japan.

We report a 63-year-old woman who had recurrent symptoms such as remarkable abdominal distension caused by autosomal dominant polycystic kidney disease in spite of previous bilateral renal arterial embolization with microcoils. Renal arterial embolization with trisacryl gelatin microspheres was performed. The embolic agent was infused while the micro-balloon catheter that was coaxially inserted from a 4-F catheter was inflated without any complications. Read More

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http://dx.doi.org/10.1177/2058460118818849DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6291887PMC
December 2018
5 Reads

Extensive perivascular dissemination of cerebral miliary tuberculomas: a case report and review of the literature.

Acta Radiol Open 2018 Dec 11;7(12):2058460118817918. Epub 2018 Dec 11.

Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan.

Cerebral tuberculosis (TB) presents most frequently as meningitis in the basilar cistern; however, it can also manifest in various other ways, such as localized encephalitis, abscess, and tuberculoma. Here, focusing on imaging findings, we report an immunocompetent case who demonstrated multiple parenchymal lesions and was diagnosed with cerebral TB after testing positive on QuantiFERON (QTF); her clinical signs/symptoms and laboratory findings responded well to anti-TB medication therapy. The patient was a 60-year-old woman with the chief complaints of headache and consciousness disturbance. Read More

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http://dx.doi.org/10.1177/2058460118817918DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6291888PMC
December 2018
2 Reads

Granular cell tumor of the breast mimicking malignancy: a case report with a literature review.

Acta Radiol Open 2018 Dec 10;7(12):2058460118816537. Epub 2018 Dec 10.

Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan.

Granular cell tumor (GCT) is a rare neoplasm of the soft tissues and <1% of all GCTs are malignant. Initially, GCT was considered a myogenic lesion affecting the female breast (myoblastoma). We report the case of an 83-year-old woman with a palpable lump in the left breast; mammography and ultrasound showed an irregular lesion. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118816537
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http://dx.doi.org/10.1177/2058460118816537DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6291886PMC
December 2018
1 Read

Dynamic contrast-enhanced magnetic resonance imaging may act as a biomarker for vascular damage in normal appearing brain tissue after radiotherapy in patients with glioblastoma.

Acta Radiol Open 2018 Nov 9;7(11):2058460118808811. Epub 2018 Nov 9.

Department of Radiology, Surgical Sciences, Uppsala University, Uppsala, Sweden.

Background: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a promising perfusion method and may be useful in evaluating radiation-induced changes in normal-appearing brain tissue.

Purpose: To assess whether radiotherapy induces changes in vascular permeability (K) and the fractional volume of the extravascular extracellular space (V) derived from DCE-MRI in normal-appearing brain tissue and possible relationships to radiation dose given.

Material And Methods: Seventeen patients with glioblastoma treated with radiotherapy and chemotherapy were included; five were excluded because of inconsistencies in the radiotherapy protocol or early drop-out. Read More

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http://dx.doi.org/10.1177/2058460118808811DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236579PMC
November 2018
1 Read

Testicular seminoma in the aged rat visualized by phase-contrast X-ray computed tomography.

Acta Radiol Open 2018 Sep 23;7(10):2058460118806657. Epub 2018 Oct 23.

School of Allied Health Sciences, Kitasato University, Kanagawaken, Japan.

Spontaneously growing testicular seminoma in the aged rat was imaged by one of the most sensitive imaging modalities, namely, phase-contrast X-ray computed tomography (CT) with crystal X-ray interferometry. Phase-contrast X-ray CT clearly depicted the detailed inner structures of the tumor and provided 20× magnified images compared to light-microscopic images. Phase-contrast X-ray CT images are generated based on density variations in the object, whereas pathological images are based on differentiation of cellular structures, such as the cellular nuclei and cytoplasm. Read More

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http://dx.doi.org/10.1177/2058460118806657DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6202748PMC
September 2018
4 Reads

Discrepancies in interpretation of night-time emergency computed tomography scans by radiology residents.

Acta Radiol Open 2018 Sep 22;7(10):2058460118807234. Epub 2018 Oct 22.

Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland.

Background: In many emergency radiology units, most of the night-time work is performed by radiology residents. Residents' preliminary reports are typically reviewed by an attending radiologist. Accordingly, it is known that discrepancies in these preliminary reports exist. Read More

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http://dx.doi.org/10.1177/2058460118807234DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6198399PMC
September 2018
15 Reads

Longer colonic transit time is associated with laxative and drug use, lifestyle factors, and symptoms of constipation.

Acta Radiol Open 2018 Sep 22;7(10):2058460118807232. Epub 2018 Oct 22.

Lund University, Skane University Hospital, Department of Internal Medicine, Malmö, Sweden.

Background: Gastrointestinal symptoms and changes in colonic transit time (CTT) are common in the population.

Purpose: To evaluate consecutive patients who had been examined for CTT, along with completion of a diary about laxative and drug use, lifestyle factors, and gastrointestinal symptoms, to identify possible associations with longer or prolonged CTT.

Material And Methods: A total of 610 consecutive patients had undergone the radiopaque marker method with an abdominal X-ray for clinical purposes. Read More

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http://dx.doi.org/10.1177/2058460118807232DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6198400PMC
September 2018
18 Reads

CT and MRI findings of bronchopulmonary endometriosis: a case presentation.

Acta Radiol Open 2018 Sep 1;7(10):2058460118801164. Epub 2018 Oct 1.

Department of Radiology, Tokyo Medical University, Tokyo, Japan.

Intrathoracic endometriosis is classified into pleurodiaphragmatic endometriosis and bronchopulmonary endometriosis. Bronchopulmonary endometriosis is rare. Computed tomography (CT) findings of bronchopulmonary endometriosis are lung nodules, with or without cavities, or surrounding ground-glass opacities. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118801164
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http://dx.doi.org/10.1177/2058460118801164DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6168730PMC
September 2018
1 Read

Density and tailored breast cancer screening: practice and prediction - an overview.

Acta Radiol Open 2018 Sep 17;7(9):2058460118791212. Epub 2018 Sep 17.

Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Gender Imaging, Medical University of Vienna, Vienna, Austria.

Mammography, as the primary screening modality, has facilitated a substantial decrease in breast cancer-related mortality in the general population. However, the sensitivity of mammography for breast cancer detection is decreased in women with higher breast densities, which is an independent risk factor for breast cancer. With increasing public awareness of the implications of a high breast density, there is an increasing demand for supplemental screening in these patients. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118791212
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http://dx.doi.org/10.1177/2058460118791212DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6144518PMC
September 2018
5 Reads

Bone density measurements adjacent to acetabular cups in total hip arthroplasty using dual-energy CT: an in vivo reliability and agreement study.

Acta Radiol Open 2018 Sep 30;7(9):2058460118796539. Epub 2018 Aug 30.

Department of Clinical Research, University of Southern Denmark, Odense, Denmark.

Background: Measuring bone mineral density (BMD) around acetabular prosthetic components with computed tomography (CT) is challenged by the complex anatomy and metal artifacts. Three-dimensional (3D) segmentation is required for the analysis, but it is usually not practically applicable on current CT workstations.

Purpose: To test the between-scan agreement and reliability of custom segmentation software for BMD measurements adjacent to cemented and uncemented acetabular cups in dual-energy CT (DECT). Read More

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http://dx.doi.org/10.1177/2058460118796539DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6117866PMC
September 2018

Process improvement for reducing side discrepancies in radiology reports.

Acta Radiol Open 2018 Jul 20;7(7-8):2058460118794727. Epub 2018 Aug 20.

Department of Radiology, Division of Thoracic Imaging and Intervention, Massachusetts General Hospital, Boston, MA, USA.

Background: Laterality errors in radiology reports can lead to serious errors in management.

Purpose: To reduce errors related to side discrepancies in radiology reports from thoracic imaging by 50% over a six-month period with education and voice recognition software tools.

Material And Methods: All radiology reports at the Thoracic Imaging Division from the fourth quarter of 2016 were reviewed manually for presence of side discrepancies (baseline data). Read More

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http://dx.doi.org/10.1177/2058460118794727DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114526PMC

Reliability of virtual non-contrast computed tomography angiography: comparing it with the real deal.

Acta Radiol Open 2018 Jul 20;7(7-8):2058460118790115. Epub 2018 Aug 20.

Department of Clinical Sciences, Lund University, Lund, Sweden.

Background: Computed tomographic angiography (CTA) may require a non-contrast enhanced dataset for the diagnostic workup. By using dual-energy acquisition, it is possible to obtain a virtual non-contrast-enhanced (VNC) dataset, thereby possibly eliminating the non-contrast acquisition and reducing the radiation dose.

Purpose: To compare image quality of VNC images reconstructed from arterial phase dual-energy CTA to true non-contrast (TNC) images, and to assess whether VNC images were of sufficient quality to replace TNC images. Read More

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http://dx.doi.org/10.1177/2058460118790115DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114525PMC
July 2018
5 Reads

Patent foramen ovale and atrial fibrillation as causes of cryptogenic stroke: is treatment with surgery superior to device closure and anticoagulation? A review of the literature.

Acta Radiol Open 2018 Sep 23;7(9):2058460118793922. Epub 2018 Aug 23.

1Department of Cardiothoracic Surgery, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.

Closure of persistent foramen ovale (PFO) to avoid cryptogenic strokes is performed globally with enthusiasm but lacks prove of efficacy. We present a 79-year-old man who had had a PFO device introduced nine years previously because of cryptogenic strokes presenting as syncopes. The patient was referred from his general practitioner with two new syncopes. Read More

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http://journals.sagepub.com/doi/10.1177/2058460118793922
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http://dx.doi.org/10.1177/2058460118793922DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6109859PMC
September 2018
19 Reads

Diffusion-weighted imaging in acute pulmonary embolism: a feasibility study.

Acta Radiol Open 2018 Jun 25;7(6):2058460118783013. Epub 2018 Jun 25.

Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.

Background: Magnetic resonance imaging (MRI) can be an alternative method to computed tomography angiography (CTA) for pulmonary embolism.

Purpose: To evaluate the feasibility of diffusion-weighted imaging (DWI) detecting acute pulmonary embolism (PE) in free-breathing humans.

Material And Methods: Twenty patients with PE verified by CTA and 20 controls were investigated with MRI (1. Read More

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http://dx.doi.org/10.1177/2058460118783013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039903PMC
June 2018
17 Reads

Extraocular muscle sampled volume in Graves' orbitopathy using 3-T fast spin-echo MRI with iterative decomposition of water and fat sequences.

Acta Radiol Open 2018 Jun 25;7(6):2058460118780892. Epub 2018 Jun 25.

Department of Radiological Sciences, Sapienza University, Roma, Italy.

Background: Current magnetic resonance imaging (MRI) techniques for measuring extraocular muscle (EOM) volume enlargement are not ideally suited for routine follow-up of Graves' ophthalmopathy (GO) because the difficulty of segmenting the muscles at the tendon insertion complicates and lengthens the study protocol.

Purpose: To measure the EOM sampled volume (SV) and assess its correlation with proptosis.

Material And Methods: A total of 37 patients with newly diagnosed GO underwent 3-T MRI scanning with iterative decomposition of water and fat (IDEAL) sequences with and without contrast enhancement. Read More

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http://dx.doi.org/10.1177/2058460118780892DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039898PMC
June 2018
10 Reads

Variable size of aortic subvalvular pseudoaneurysm.

Acta Radiol Open 2018 Jun 25;7(6):2058460118778068. Epub 2018 Jun 25.

Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Division of Medical Imaging and Technology, Stockholm, Sweden.

Aortic subvalvular pseudoaneurysms (PSA) are particularly subjected to strain and shear stress forces from blood flow and therefore their size can vary along the heart cycle. Here we describe a case of an aortic subvalvular PSA that shows significant variation in size between systolic and diastolic phase during retrospective ECG-triggered cardiac computed tomography angiography. Read More

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http://dx.doi.org/10.1177/2058460118778068DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039904PMC
June 2018
11 Reads

Single-phase bilateral low dose contrast medium injection for diagnosing occlusions of the thoracic venous system: a case report.

Acta Radiol Open 2018 Jun 25;7(6):2058460118778060. Epub 2018 Jun 25.

Department of Clinical Science, Intervention and Technology at KarolinskaInstitutet, Division of Medical Imaging and Technology, Stockholm, Sweden.

Occlusion of the thoracic venous system and/or occlusion of central venous catheters (CVC) of unknown cause can, in selected cases, require advanced imaging. Here, we describe a case study of a patient with a failing central dialysis catheter (CDC) which was diagnosed by computed tomography (CT) in connection with a single-phase bilateral low-dose contrast medium (CM) injection using only 3.6 g of iodine. Read More

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http://dx.doi.org/10.1177/2058460118778060DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039902PMC
June 2018
12 Reads

Impact of donor chest radiography on clinical outcome after lung transplantation.

Acta Radiol Open 2018 Jun 14;7(6):2058460118781419. Epub 2018 Jun 14.

Centre for Medical Imaging and Physiology, Skåne University Hospital, Lund, Sweden.

Background: Organ donation guidelines recommend a "clear" conventional bedside chest radiograph before lung transplantation despite only moderate accuracy for cardiopulmonary abnormalities.

Purpose: To evaluate the influence of donor image interpretation on lung transplantation outcome in recipients by following early and late complications, one-year survival, and to correlate imaging findings and blood gas analysis with lung transplantation outcome in recipients.

Material And Methods: In 35 lung donors from a single institution clinical reports and study reviews of imaging findings of the mandatory bedside chest radiographs and blood gas analyses were compared with clinical outcome in 38 recipients. Read More

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http://dx.doi.org/10.1177/2058460118781419DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6024291PMC
June 2018
20 Reads

Histopathology findings of non-mass cancers on breast ultrasound.

Acta Radiol Open 2018 Jun 29;7(6):2058460118774957. Epub 2018 May 29.

Department of Radiology, CHA Bundang Medical Center, CHA University, Seoul, Republic of Korea.

Background: There is little research done on non-mass cancers (NMCs) on breast ultrasound (US).

Purpose: To evaluate large-sectional histopathology findings of NMCs on breast US.

Material And Methods: The mammographic and histopathology features of biopsy proven 36 breast cancers which showed pure non-mass lesions on US were retrospectively reviewed. Read More

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http://dx.doi.org/10.1177/2058460118774957DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5977436PMC
June 2018
3 Reads

Imaging review of the anterior skull base.

Acta Radiol Open 2018 May 23;7(5):2058460118776487. Epub 2018 May 23.

Department of Radiology, St Bartholomew's and The Royal London Hospitals, Barts Health NHS Trust, London, UK.

The anterior skull base (ASB) is intimately associated with the unique soft tissue subtypes of the nasal cavity, paranasal sinuses, orbits, and intracranial compartment. Pathology involving the ASB is rare but the causes are manifold and can be broadly subdivided into those intrinsic to the skull base and processes extending from below or above. Sinonasal pathology is the most commonly encountered and poses significant management challenges that rely heavily on accurate interpretation of the radiological findings. Read More

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http://dx.doi.org/10.1177/2058460118776487DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5977432PMC
May 2018
2 Reads

Multiple intra-hepatic and abdominal splenosis: an easy call if you know about it.

Acta Radiol Open 2018 May 11;7(5):2058460118772324. Epub 2018 May 11.

Department of Advanced Biomedical Sciences, University Federico II, Naples Italy.

Hepatic splenosis represents the heterotopic implantation of splenic tissue caused by the spillage of cells from the spleen usually after splenectomy or splenic trauma. This condition is usually an incidental finding during surgery and its real incidence is unknown. Splenic implants, which can be placed anywhere in the abdominal cavity, are usually multiple and may be confused with different benign and malignant conditions such as renal tumors, abdominal lymphomas, and endometriosis. Read More

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http://dx.doi.org/10.1177/2058460118772324DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5952290PMC
May 2018
1 Read

Feasibility of synthetic MRI in knee imaging in routine practice.

Acta Radiol Open 2018 May 11;7(5):2058460118769686. Epub 2018 May 11.

Division of Neuroradiology, Department of Radiology, Geneva University Hospital, Geneva, Switzerland.

Background: Synthetic magnetic resonance (MR) is a method allowing reduction of examination time and access to quantitative imaging.

Purpose: This study sought to assess the image quality and diagnostic accuracy of synthetic magnetic resonance imaging (MRI) compared to standard MRI in patients with knee pain.

Material And Methods: In total, 22 patients underwent standard 1. Read More

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http://dx.doi.org/10.1177/2058460118769686DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5952291PMC
May 2018
3 Reads

Acoustic radiation force impulse (ARFI) elastography in a cohort of alpha-1 antitrypsin-deficient individuals and healthy volunteers.

Acta Radiol Open 2018 Apr 19;7(4):2058460118768363. Epub 2018 Apr 19.

Department of Respiratory Medicine and Allergology Malmö, Skane University Hospital, Lund University, Sweden.

Background: Acoustic radiation force impulse (ARFI) elastography has been used to assess liver stiffness non-invasively. However, its usefulness in alpha-1 antitripsin-deficient (AATD) individuals is unknown.

Purpose: To assess if liver fibrosis is present in a cohort of AATD individuals using ARFI elastography. Read More

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http://dx.doi.org/10.1177/2058460118768363DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5946635PMC

New patient-controlled abdominal compression method in radiography: radiation dose and image quality.

Acta Radiol Open 2018 May 3;7(5):2058460118772863. Epub 2018 May 3.

4Department of Radiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.

Background: The radiation dose for patients can be reduced with many methods and one way is to use abdominal compression. In this study, the radiation dose and image quality for a new patient-controlled compression device were compared with conventional compression and compression in the prone position

Purpose: To compare radiation dose and image quality of patient-controlled compression compared with conventional and prone compression in general radiography.

Material And Methods: An experimental design with quantitative approach. Read More

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http://dx.doi.org/10.1177/2058460118772863DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5946613PMC
May 2018
2 Reads

Efficacy of percutaneous transhepatic portal vein embolization using gelatin sponge particles and metal coils.

Acta Radiol Open 2018 Apr 11;7(4):2058460118769687. Epub 2018 Apr 11.

Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.

Background: Percutaneous transhepatic portal vein embolization (PTPE) can increase the future liver remnant (FLR) volume before extended liver resection; however, there is no current consensus regarding the best embolic material for PTPE.

Purpose: To evaluate the efficacy of PTPE using gelatin sponge particles and coils.

Material And Methods: The medical records of 136 patients who underwent PTPE using gelatin sponge particles and metal coils were retrospectively reviewed. Read More

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http://dx.doi.org/10.1177/2058460118769687DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5898667PMC
April 2018
3 Reads

The influence of a peritoneovenous shunt for cirrhotic and malignant intractable ascites on renal function.

Acta Radiol Open 2018 Mar 26;7(3):2058460118764208. Epub 2018 Mar 26.

Department of Radiology, Iwate Medical University, Morioka, Japan.

Background: Peritoneovenous shunts (PVS) are widely used for palliation of intractable ascites caused by peritoneal carcinomatosis (PC) or liver cirrhosis (LC). Some patients who need PVS have renal dysfunction. However, renal dysfunction is considered a relative contraindication. Read More

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http://dx.doi.org/10.1177/2058460118764208DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5881988PMC
March 2018
2 Reads

Growth of the colon and rectum throughout gestation: evaluation with fetal MRI.

Acta Radiol Open 2018 Mar 4;7(3):2058460118761206. Epub 2018 Mar 4.

1Department of Diagnostic Radiology, Sheba Medical Center, Ramat-Gan, Israel.

Background: Congenital abnormalities of the gastrointestinal tract are increasingly being evaluated by prenatal magnetic resonance imaging (MRI). However, there is a paucity of reports describing the normal quantitative development of the fetal colon and rectum on MRI.

Purpose: To provide growth curves of the MRI estimated diameter of the fetal colon and rectum as a function of gestational age. Read More

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http://dx.doi.org/10.1177/2058460118761206DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5843125PMC
March 2018
19 Reads

Role of CT angiography in bilateral pulmonary sequestration: a case report.

Acta Radiol Open 2018 Mar 4;7(3):2058460118757577. Epub 2018 Mar 4.

3Department of Pathology, Rigshospitalet, Copenhagen, Denmark.

Bilateral pulmonary sequestration (PS) is a very rare congenital malformation. We describe a case of bilateral intralobar pulmonary sequestration (ILS) in a newborn. Both sequestrations received arterial supply from separate branches of the descending aorta and venous drainage was into ipsilateral inferior pulmonary veins. Read More

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http://dx.doi.org/10.1177/2058460118757577DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5843107PMC
March 2018
1 Read

Selective venous sampling supports localization of adenoma in primary hyperparathyroidism.

Acta Radiol Open 2018 Feb 28;7(2):2058460118760361. Epub 2018 Feb 28.

Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan.

Background: Selective venous sampling (SVS) is an invasive localization study for persistent or recurrent hyperparathyroidism.

Purpose: To assess the role of SVS in addition to non-invasive imaging for primary hyperparathyroidism (pHPT).

Material And Methods: This study was approved by the institutional review board and included 14 patients who underwent SVS and subsequent parathyroidectomy between January 2014 and April 2017 following a clinical diagnosis of pHPT. Read More

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http://dx.doi.org/10.1177/2058460118760361DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5833180PMC
February 2018
2 Reads

Factors associated with pericolic fat stranding of colon cancer on computed tomography colonography.

Acta Radiol Open 2018 Feb 19;7(2):2058460118757578. Epub 2018 Feb 19.

Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan.

Background: Pericolic fat stranding on computed tomography (CT) scans has been an important feature for staging colon cancer. However, the factors associated with pericolic fat stranding have not been elucidated to date.

Purpose: To determine factors associated with pericolic fat stranding of colon cancer on CT colonography (CTC). Read More

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http://dx.doi.org/10.1177/2058460118757578DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5821301PMC
February 2018

Accuracy in local staging of prostate cancer by adding a three-dimensional T2-weighted sequence with radial reconstructions in magnetic resonance imaging.

Acta Radiol Open 2018 Feb 8;7(2):2058460118754607. Epub 2018 Feb 8.

1Department of Radiology, Karolinska University Hospital, Solna, Sweden.

Background: The evidence supporting the use of magnetic resonance imaging (MRI) in prostate cancer detection has been established, but its accuracy in local staging is questioned.

Purpose: To investigate the additional value of multi-planar radial reconstructions of a three-dimensional (3D) T2-weighted (T2W) MRI sequence, intercepting the prostate capsule perpendicularly, for improving local staging of prostate cancer.

Material And Methods: Preoperative, bi-parametric prostate MRI examinations in 94 patients operated between June 2014 and January 2015 where retrospectively reviewed by two experienced abdominal radiologists. Read More

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http://dx.doi.org/10.1177/2058460118754607DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810977PMC
February 2018
18 Reads

Screening-detected desmoid tumor of the breast: findings at conventional imaging and digital breast tomosynthesis.

Acta Radiol Open 2018 Jan 19;7(1):2058460117752034. Epub 2018 Jan 19.

Department of Radiology, Oslo University Hospital, University of Oslo, Oslo, Norway.

Desmoid tumor of the breast is a rare benign entity that usually is mistaken for carcinoma clinically and radiologically. We report two cases of desmoid tumor of the breast detected by mammography screening using digital breast tomosynthesis (DBT). The larger tumor was detected at both full-field digital mammography (FFDM) and DBT. Read More

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http://dx.doi.org/10.1177/2058460117752034DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5777554PMC
January 2018
1 Read

A comparative ultrasonographic evaluation of intrarenal artery resistive index among hypertensive and normotensive adults in a black African population compared to a European population.

Acta Radiol Open 2018 Jan 18;7(1):2058460117752033. Epub 2018 Jan 18.

Health Systems Development, Jhpiego-Affiliate of Johns Hopkins University, Abuja, Nigeria.

Background: Hypertensive nephropathy is an important medical problem among the black African population. Early detection of renovascular changes using ultrasonography can provide opportunity for immediate intervention towards preventing or at least delaying the irreversible hypertensive nephropathy.

Purpose: To compare intrarenal resistive index (RI) in healthy normotensive and hypertensive adults in Kano, Nigeria. Read More

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http://journals.sagepub.com/doi/10.1177/2058460117752033
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http://dx.doi.org/10.1177/2058460117752033DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5777559PMC
January 2018
1 Read

Effects of diffusion time on non-Gaussian diffusion and intravoxel incoherent motion (IVIM) MRI parameters in breast cancer and hepatocellular carcinoma xenograft models.

Acta Radiol Open 2018 Jan 11;7(1):2058460117751565. Epub 2018 Jan 11.

Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.

Background: Perfusion-related intravoxel incoherent motion (IVIM) and non-Gaussian diffusion magnetic resonance (MR) parameters are becoming important biomarkers for differentiating malignant from benign tumors without contrast agents. However, diffusion-time dependence has rarely been investigated in tumors.

Purpose: To investigate the relationship between diffusion time and diffusion parameters in breast cancer and hepatocellular carcinoma xenograft mouse models. Read More

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http://journals.sagepub.com/doi/10.1177/2058460117751565
Publisher Site
http://dx.doi.org/10.1177/2058460117751565DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5774737PMC
January 2018
6 Reads

Optimization of prostate MRI acquisition and post-processing protocol: a pictorial review with access to acquisition protocols.

Authors:
Ivan Jambor

Acta Radiol Open 2017 Dec 8;6(12):2058460117745574. Epub 2017 Dec 8.

Department of Radiology, University of Turku, Turku, Finland.

The aim of this review article is to provide insight into the optimization of 1.5-Testla (T) and 3-T prostate magnetic resonance imaging (MRI). An approach for optimization of data quantification, especially diffusion-weighted imaging (DWI), is provided. Read More

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http://dx.doi.org/10.1177/2058460117745574DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5724653PMC
December 2017

CT Dental Artifact: Comparison of an Iterative Metal Artifact Reduction Technique with Weighted Filtered Back-Projection.

Acta Radiol Open 2017 Nov 26;6(11):2058460117743279. Epub 2017 Nov 26.

Department of Radiology, Mayo Clinic, Rochester, MN, USA.

Background: Dental hardware produces streak artifacts on computed tomography (CT) images reconstructed with the standard weighted filtered back projection (wFBP) method.

Purpose: To perform a preliminary evaluation of an iterative metal artifact reduction (IMAR) technique to assess its ability to improve anatomic visualization over wFBP in patients with dental amalgam or other hardware.

Material And Methods: CT images from patients with dental hardware were reconstructed using wFBP and IMAR software and soft-tissue or bone window/level settings. Read More

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http://dx.doi.org/10.1177/2058460117743279DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5714095PMC
November 2017
30 Reads

Influence of longitudinal position on the evolution of steady-state signal in cardiac cine balanced steady-state free precession imaging.

Acta Radiol Open 2017 Nov 21;6(11):2058460117729186. Epub 2017 Nov 21.

Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY, USA.

Background: Emerging quantitative cardiac magnetic resonance imaging (CMRI) techniques use cine balanced steady-state free precession (bSSFP) to measure myocardial signal intensity and probe underlying physiological parameters. This correlation assumes that steady-state is maintained uniformly throughout the heart in space and time.

Purpose: To determine the effects of longitudinal cardiac motion and initial slice position on signal deviation in cine bSSFP imaging by comparing two-dimensional (2D) and three-dimensional (3D) acquisitions. Read More

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http://dx.doi.org/10.1177/2058460117729186DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700791PMC
November 2017

Medial collateral ligament calcification: a rare knee pain entity with literature review.

Acta Radiol Open 2017 Nov 10;6(11):2058460117738549. Epub 2017 Nov 10.

Physical Medicine and Rehabilitation Department, Brahmanbaria Medical College, Brahmanbaria, Bangladesh.

Medial knee pain can originate from both osseous and non-osseous soft tissue structures including medial collateral ligament (MCL), creating a raft for patients' sufferings. Previously published works demonstrated MCL calcification as a rare medial knee pain entity. Alongside physical examination, radio-imaging techniques, namely conventional X-ray, CT/MRI scanning, etc. Read More

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http://dx.doi.org/10.1177/2058460117738549DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682586PMC
November 2017

A prospective study comparing whole-body skeletal X-ray survey with 18F-FDG-PET/CT, 18F-NaF-PET/CT and whole-body MRI in the detection of bone lesions in multiple myeloma patients.

Acta Radiol Open 2017 Oct 27;6(10):2058460117738809. Epub 2017 Oct 27.

Copenhagen University Hospital Herlev, Herlev, Denmark.

Background: For decades, the most widely used imaging technique for myeloma bone lesions has been a whole-body skeletal X-ray survey (WBXR), but newer promising imaging techniques are evolving.

Purpose: To compare WBXR with the advanced imaging techniques 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT), 18F-sodium fluoride (NaF) PET/CT and whole-body magnetic resonance imaging (WB-MRI) in the detection of myeloma bone lesions.

Material And Methods: Fourteen patients with newly diagnosed multiple myeloma were prospectively enrolled. Read More

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http://dx.doi.org/10.1177/2058460117738809DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5661685PMC
October 2017
2 Reads