1,527,364 results match your criteria Radiography [Journal]


Combined treatment with systemic resveratrol and resveratrol preconditioned mesenchymal stem cells, maximizes antifibrotic action in diabetic cardiomyopathy.

J Cell Physiol 2018 Dec 7. Epub 2018 Dec 7.

Department of Physiology, Faculty of Medicine, Cairo University, Giza, Egypt.

Wnt/β-catenin signaling pathway plays a crucial role in diabetic cardiomyopathy (DCM), thus we aimed at investigating the effect of one therapeutic approach with resveratrol (RSV) given systemically and combined treatment of RSV with mesenchymal stem cells (MSCs) that was either RSV-preconditioned or not on Wnt/β-catenin signaling pathway in streptozotocin-induced DCM, and to evaluate effects of RSV preconditioning on MSCs therapeutic potential. The rats were divided into control (C, n = 8), diabetic (DM, n = 8), diabetic treated with systemic RSV (DM-RSV, n = 8), diabetic treated with RSV and nonconditioned MSCs (DM-RSV-MSCs, n = 8), diabetic treated with RSV and RSV-incubated with MSCs (DM-RSV-MSCc, n = 8) and diabetic treated with RSV-conditioned MSCs (DM-MSCc, n = 8). Echocardiography (Echo) showed significant improvement of cardiac functions in all groups treated with RSV either systemic or added in culture media. Read More

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December 2018

Dendrimer functionalized magnetic nanoparticles as a promising platform for localized hyperthermia and magnetic resonance imaging diagnosis.

J Cell Physiol 2018 Dec 10. Epub 2018 Dec 10.

Hematology and Cell Therapy Department, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran.

Magnetic iron oxide nanoparticles are a well-explored class of nanomaterials known for their high magnetization and biocompatibility. They have been used in various biomedical applications such as drug delivery, biosensors, hyperthermia, and magnetic resonance imaging (MRI) contrast agent. It is necessary to surface modify the nanoparticles with a biocompatible moiety to prevent their agglomeration and enable them to target to the defined area. Read More

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December 2018

Bismuth Ferrite Second Harmonic Nanoparticles for Pulmonary Macrophage Tracking.

Small 2018 Dec 10:e1803776. Epub 2018 Dec 10.

Translational Molecular Imaging, Max-Planck Institute for Experimental Medicine, Hermann-Rein-Str. 3, 37075, Göttingen, Germany.

Recently, second harmonic generation (SHG) nanomaterials have been generated that are efficiently employed in the classical (NIR) and extended (NIR-II) near infrared windows using a multiphoton microscope. The aim was to test bismuth ferrite harmonic nanoparticles (BFO-HNPs) for their ability to monitor pulmonary macrophages in mice. BFO-loaded MH-S macrophages are given intratracheally to healthy mice or BFO-HNPs are intranasally instilled in mice with allergic airway inflammation and lung sections of up to 100 μM are prepared. Read More

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December 2018
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Nanocatalysts-Augmented and Photothermal-Enhanced Tumor-Specific Sequential Nanocatalytic Therapy in Both NIR-I and NIR-II Biowindows.

Adv Mater 2018 Dec 9:e1805919. Epub 2018 Dec 9.

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.

The tumor microenvironment (TME) has been increasingly recognized as a crucial contributor to tumorigenesis. Based on the unique TME for achieving tumor-specific therapy, here a novel concept of photothermal-enhanced sequential nanocatalytic therapy in both NIR-I and NIR-II biowindows is proposed, which innovatively changes the condition of nanocatalytic Fenton reaction for production of highly efficient hydroxyl radicals (•OH) and consequently suppressing the tumor growth. Evidence suggests that glucose plays a vital role in powering cancer progression. Read More

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December 2018

Concurrent pituitary and adrenocortical lesions on computed tomography imaging in dogs with spontaneous hypercortisolism.

J Vet Intern Med 2018 Dec 11. Epub 2018 Dec 11.

Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.

Background: Spontaneous hypercortisolism or Cushing's syndrome in dogs is either pituitary or adrenal dependent, but concurrent pituitary and adrenal hypercortisolism also has been reported.

Objective: To determine how often concurrent pituitary and adrenal lesions are present in dogs with spontaneous hypercortisolism.

Animals: Two hundred one client-owned dogs with spontaneous hypercortisolism. Read More

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December 2018

Tc-Ceftizoxime: Synthesis, characterization and its use in diagnosis of diabetic foot osteomyelitis.

J Med Imaging Radiat Oncol 2018 Dec 10. Epub 2018 Dec 10.

Department of Nuclear Medicine, Nuclear Medicine, Oncology and Radiotherapy Institute (NORI), Islamabad, Pakistan.

Introduction: The diagnosis of diabetic foot osteomyelitis is crucial and challenging for the proper management of diabetic foot. Tc labelled Ceftizoxime was used as a non-invasive diagnostic agent for diabetic foot osteomyelitis.

Methods: Ceftizoxime [CFT], a third generation cephalosporin, was used in a simple and direct method for the synthesis of TcO labelled infection imaging agent with stannous chloride as reducing agent. Read More

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December 2018

Sex and level differences in the diameters of extradural segment of vertebral artery: CT angiographic study.

Folia Morphol (Warsz) 2018 Dec 11. Epub 2018 Dec 11.

University of Banja Luka, Faculty of Banja luka , Department of Anatomy, Save Mrkalja 14, 78000 Banja Luka, Bosnia and Herzegovina.

We investigated diameters of prevertebral -V1, and atlantic -V3 parts of extradural segment of vertebral artery (VA). Variable results from the literature about VA diameters reflect variety of diagnostic and imaging methods, various sample sizes, different levels of measurements, and lack of possible specific ethnic, regional or genetic data. Additionally, the data are often without distinctions of left- right or of sex. Read More

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December 2018

Metronidazole-induced encephalopathy: a systematic review.

J Neurol 2018 Dec 7. Epub 2018 Dec 7.

Department of Neurology, Sjællands Universitetshospital, Sygehusvej 10, 4000, Roskilde, Denmark.

Background And Aims: Metronidazole, a commonly used antibiotic drug, can cause adverse effects in the central nervous system termed metronidazole-induced encephalopathy, leading to diagnostic challenges. The condition is rare and a detailed description of its phenotype is lacking. In this systematic review we investigated the clinical features of metronidazole-induced encephalopathy to promote recognition and elaborate the description. Read More

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December 2018

Preliminary validation of the Simplified Psoriatic Arthritis Radiographic Score (SPARS).

Skeletal Radiol 2018 Dec 7. Epub 2018 Dec 7.

Radiology Department, Università Politecnica delle Marche, Ancona, Italy.

Objective: To develop and validate in a preliminary way a novel radiographic scoring system for psoriatic arthritis (PsA), called Simplified Psoriatic Arthritis Radiographic Score (SPARS).

Materials And Methods: Radiographs of hands and feet were obtained from consecutive PsA patients and assessed by two readers. For each joint (30 joints in the hands, ten joints in the feet), the combination of the erosions, joint narrowing space (JNS) and bony proliferation (BP) has been assessed, giving a value of 1 for erosions presence, 1 for JNS presence, and 1 for BP presence (SPARS score range, 0-120). Read More

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December 2018

Effect of brightness and contrast variation for detectability of root resorption lesions in digital intraoral radiographs.

Clin Oral Investig 2018 Dec 7. Epub 2018 Dec 7.

Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, 13414-903, Brazil.

Objectives: To evaluate the performance of periapical radiography assessed under different radiographic brightness and contrast variations in the detection of simulated internal (IRR) and external (ERR) root resorption lesions. Additionally, observers' preferences related to image quality for these diagnostic tasks were evaluated.

Methods: Thirty single-root teeth were divided into two groups (n = 15): IRR, in which lesions were simulated using mechanical and biochemical processes; and ERR, in which cavities standardized with drills of different sizes were performed on the root surfaces. Read More

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December 2018
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Comprehensive anatomical and functional imaging in patients with type I neurofibromatosis using simultaneous FDG-PET/MRI.

Eur J Nucl Med Mol Imaging 2018 Dec 8. Epub 2018 Dec 8.

Department of Diagnostic and Interventional Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str.3, 72076, Tuebingen, Germany.

Purpose: To demonstrate the clinical use of FDG-PET/MRI for monitoring enlargement and metabolism of plexiform neurofibromas (PNF) in patients with neurofibromatosis type 1 (NF1), in whom the development of a malignant peripheral nerve sheath tumor (MPNST) is often a life limiting event.

Methods: NF1 patients who underwent a simultaneous FDG-PET/MRI examination in our institution from September 2012 to February 2018 were included. Indication was suspicion of malignant transformation of a PNF to MPNST. Read More

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December 2018

F-FDG PET/CT diagnostic performance in solitary and multiple pulmonary nodules detected in patients with previous cancer history: reports of 182 nodules.

Eur J Nucl Med Mol Imaging 2018 Dec 8. Epub 2018 Dec 8.

Nuclear Medicine Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Francesco Vito, 1, 00168, Roma, Italia.

Purpose: In oncological patients, F-FDG PET/CT performance for pulmonary nodules' characterization is not well-established. Thus, the purpose of this study was to evaluate the F-FDG PET/CT diagnostic performance in pulmonary nodules detected during follow-up in oncological patients and the relationship between malignancy and nodules' characteristics.

Methods: We retrospectively evaluated 182 pulmonary nodules (121 solitary, 61 multiple; mean size = 16. Read More

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December 2018

Automatic coronary blood flow computation: validation in quantitative flow ratio from coronary angiography.

Int J Cardiovasc Imaging 2018 Dec 8. Epub 2018 Dec 8.

Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.

To assess a novel approach for automatic flow velocity computation in deriving quantitative flow ratio (QFR) from coronary angiography. QFR is a novel approach for assessment of functional significance of coronary artery stenosis without using pressure wire and induced hyperemia. Patient-specific coronary flow is estimated semi-automatically by frame count method, which is subjective and inconvenient in the workflow of QFR analysis. Read More

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December 2018

Imaging and Surgical Treatment of Primary Pulmonary Artery Sarcoma.

Int J Cardiovasc Imaging 2018 Dec 8. Epub 2018 Dec 8.

Houston Methodist DeBakey Heart and Vascular Center, Houston, TX, USA.

Primary pulmonary artery sarcoma is a rare tumor originating from the pulmonary artery tree. Given the low incidence, few centers have reported on more than a handful of cases. Because of its rarity it is also commonly misdiagnosed as pulmonary embolism. Read More

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December 2018

Diffusion-weighted imaging and diffusion tensor imaging as adjuncts to conventional MRI for the diagnosis and management of peripheral nerve sheath tumors: current perspectives and future directions.

Eur Radiol 2018 Dec 7. Epub 2018 Dec 7.

Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75022, USA.

Peripheral nerve sheath tumors (PNSTs) account for ~ 5% of soft tissue neoplasms and are responsible for a wide spectrum of morbidities ranging from localized neuropathy to fulminant metastatic spread and death. MR imaging represents the gold standard for identification of these neoplasms, however, current anatomic MR imaging markers do not reliably detect or differentiate benign and malignant lesions, and therefore, biopsy or excision is required for definitive diagnosis. Diffusion-weighted MR imaging (DWI) serves as a useful tool in the evaluation and management of PNSTs by providing functional information regarding the degree of diffusion, while diffusion tensor imaging (DTI) aids in determining the directional information of predominant diffusion and has been shown to be particularly useful for pre-operative planning of these tumors by delineating healthy and pathologic fascicles. Read More

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December 2018

A comparative study of MR extracellular volume fraction measurement and two-dimensional shear-wave elastography in assessment of liver fibrosis with chronic hepatitis B.

Abdom Radiol (NY) 2018 Dec 7. Epub 2018 Dec 7.

Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.

Objective: To evaluate the value of MR liver extracellular volume (ECV) in assessment of liver fibrosis with chronic hepatitis B (CHB), and to compare its performance with two-dimensional (2D) shear-wave elastography (SWE).

Materials And Methods: A total of 68 CHB patients who were histologically diagnosed as fibrosis stages F0 to F4 were retrospectively analyzed. All patients underwent gadopentetate dimeglumine-enhanced T1-mapping and 2D SWE. Read More

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December 2018

Caspase‑dependent apoptotic death by gadolinium chloride (GdCl3) via reactive oxygen species production and MAPK signaling in rat C6 glioma cells.

Oncol Rep 2018 Dec 7. Epub 2018 Dec 7.

Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan, R.O.C.

Gadolinium (Gd) compounds serve as magnetic resonance imaging contrast agents and exert certain anticancer activities. Yet, the molecular signaling underlying the antitumor effect of Gd chloride (GdCl3) on glioma remains unclear. In the present study, we aimed to ascertain the apoptotic mechanisms of GdCl3 on rat glioma C6 cells. Read More

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December 2018

European consensus-based recommendations for the diagnosis and treatment of Kawasaki disease - the SHARE initiative.

Rheumatology (Oxford) 2018 Dec 7. Epub 2018 Dec 7.

Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK.

Objectives: The European Single Hub and Access point for paediatric Rheumatology in Europe initiative aimed to optimize care for children with rheumatic diseases. Kawasaki disease (KD) is the most common cause of acquired heart disease in children and an important cause of long-term cardiac disease into adulthood. Prompt diagnosis and treatment of KD is difficult due to the heterogeneity of the disease but is crucial for improving outcome. Read More

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December 2018
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Mixed reality holograms for heart surgery planning: first user experience in congenital heart disease.

Eur Heart J Cardiovasc Imaging 2018 Dec 6. Epub 2018 Dec 6.

The Intervention Centre, Oslo University Hospital, Rikshospitalet, Sognsvannsvn 20, Oslo, Norway.

Aims: Proof of concept and feasibility study for preoperative diagnostic use of mixed reality (MR) holograms of individual 3D heart models from standard cardiac computed tomography angiograms (CTA) images. Optimal repair for complex congenital heart disease poses high demands on 3D anatomical imagination. Three-dimensional printed heart models are increasingly used for improved morphological understanding during surgical and interventional planning. Read More

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December 2018

Clinical, histological and therapeutic modern approach of Ledderhose disease.

Rom J Morphol Embryol 2018 ;59(3):691-697

Department of Anesthesiology and Intensive Care, Emergency Clinical Hospital of Bucharest, Romania;

Ledderhose disease or plantar fibromatosis is a rare hyperproliferative disorder of the plantar aponeurosis, clinically characterized by nodules situated especially on the medial border of the foot. It is histopathologically associated with Dupuytren's disease. This disease has some risk factors, like old age, alcohol or nicotine abuse, liver dysfunction, trauma or exposure to vibrations and autoimmune disorders, but the exact etiology is still unknown. Read More

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January 2018

Elastography in prostate gland imaging and prostate cancer detection.

Med Ultrason 2018 Dec;20(4):515-523

Chair of Urology, Department of General and Oncologic Urology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland. Department of General and Oncologic Urology, Nicolaus Copernicus Hospital, Toruń, Poland.

Transrectal prostate biopsies under ultrasonography guidance remain the gold standard for the detection of prostate cancer (PCa). Transrectal ultrasonography (TRUS), however, has a limited sensitivity in PCa detection. Prostate elastography (TRES) increases the sensitivity of a TRUS examination. Read More

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December 2018

Comparison of Cone Beam Computed Tomography and ultrasonography with two types of probes in the detection of opaque and non-opaque foreign bodies.

Med Ultrason 2018 Dec;20(4):467-474

Abant Izzet Baysal Unıversity Faculty of Dentistry, Department of Dentomaxillofacial Radiology.

Aim: The aim of this study was to compare the diagnostic accuracy of intra-oral and extra-oral ultrasonographic (US) examinations performed with linear and convex probes in the detection of opaque and non-opaque foreign bodies (FBs) located in the maxillofacial area.

Materials And Methods: Thirteen different type of FBs were inserted into a sheep's head: a) on the external bone surface of mandible (between the mandibular corpus and masseter muscle), b) in the intrinsic muscular tissue (in the dorsum of the tongue) and c) in the hollow structures (into the maxillary sinus of the sheep's head). The FBs in muscle tissue were scanned intra-orally whereas FBs in bone external bone surface of mandible and in maxillary sinus were scanned both intra-orally and extra-orally. Read More

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December 2018

Comparison between cystourethrography and sonourethrography in preoperative diagnostic management of patients with anterior urethral strictures.

Med Ultrason 2018 Dec;20(4):436-440

Department of Urology, Medical University of Gdańsk, Gdańsk, Poland.

Aim: To evaluate the urethral lesions and the degree of spongiofibrosis using cystourethrography (CUG) and sonourethrography (SUG) in order to propose the best imaging method for further surgical treatment.

Material And Methods: The study involved 66 patients with anterior urethral strictures with indication for urethroplasty. Results of CUG and SUG were compared with each other and data from surgical protocol. Read More

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December 2018

The importance of pancreatic inflammation in endosonographic diagnostics of solid pancreatic masses.

Med Ultrason 2018 Dec;20(4):427-435

Department of Internal Medicine 1, Friedrich-Alexander-University, Erlangen- Nuremberg, Germany.

Aims: Endosonography (EUS) is one of the main diagnostic tools for the differential diagnosis of pancreatic masses. The aim of our study was to describe the value of this technique in the work-up of solid pancreatic lesions, considering the influence of the morphological evidence of pancreatic inflammation in the diagnostic process.

Material And Methods: Retrospective analysis of prospectively collected data in our tertiary University center. Read More

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December 2018

Application of contrast enhanced ultrasound in gallbladder lesion: is it helpful to improve the diagnostic capabilities?

Med Ultrason 2018 Dec;20(4):420-426

Department of ultrasound, Drumtower Hospital, Medical College of Nanjing University, Nanjing, China.

The aim of this study is to evaluate if contrast enhanced ultrasound (CEUS) can improve the differential diagnostic performance of gallbladder (GB) lesions.

Materials And Methods: Forty-nine patients (18 men, 31 women; mean age, 54.8±14. Read More

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December 2018

Differential diagnosis of gallbladder ascariasis debris: the added value of contrast enhanced ultrasound with high frequency transducer.

Med Ultrason 2018 Dec;20(4):413-419

Medizinische Klinik 2, Caritas-Krankenhaus Bad Mergentheim, Bad Mergentheim, Germany.

Ascariasis debris of the gallbladder is a very rare incidental or symptomatic presentation. Ascaris debris has a pseudotumorous appearance and may be confused with neoplasia. The aim of the current retrospective study is to investigate the value of contrast enhanced ultrasound (CEUS) for the differential diagnosis of ascariasis debris and neoplasia of the gallbladder. Read More

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December 2018

Equilibrium radionuclide ventriculography: still a clinically useful method for the assessment of cardiac function?

Hell J Nucl Med 2018 Sep-Dec;21(3):213-220

Clinical Cooperation Unit Nuclear Medicine German Cancer Research Center, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany. christos_saxpe

The non-invasive assessment of left ventricular function with simple indices, such as left ventricular volumes and ejection fraction (LVEF), offers significant diagnostic and prognostic implications in the entire spectrum of cardiac diseases. Equilibrium radionuclide ventriculography (RNV) is a well validated technique for this purpose. Based on the principle that the amount of radioactivity emitted by technetium-99m (Tc)-pertechnate labeled erythrocytes in the cardiac chambers is proportional to the amount of bloodcontained, reproducible and accurate LVEF measurements can be obtained, with practically no geometric assumptions regarding heart shape. Read More

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October 2018

Unilateral Chronic Lung Allograft Dysfunction Assessed by Biphasic Computed Tomographic Volumetry in Bilateral Living-donor Lobar Lung Transplantation.

Transplant Direct 2018 Nov 12;4(11):e398. Epub 2018 Oct 12.

Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.

Background: Early diagnosis of unilateral chronic lung allograft dysfunction (CLAD) is difficult because the unaffected contralateral lung functions as a reservoir in bilateral living-donor lobar lung transplantation (LDLLT). We previously reported the usefulness of Xe ventilation scintigraphy for detection of unilateral change, but the supply of Xe has been stopped globally. The present study aimed to examine the usefulness of inspiratory and expiratory computed tomography (I/E CT) volumetry for detection of unilateral change in CLAD patients. Read More

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November 2018

Bilateral same-session flexible ureterorenoscopy for renal and/or ureteric stone disease treatment.

Arab J Urol 2018 Dec 18;16(4):441-445. Epub 2018 May 18.

Department of Urology, Hisar Intercontinental Hospital, Istanbul, Turkey.

Objective: To evaluate the effectiveness and safety of bilateral same-session flexible ureterorenoscopy (f-URS) in the treatment of bilateral renal and/or ureteric stone disease.

Patients And Methods: From October 2007 to December 2015, 62 patients who had undergone bilateral, same-session f-URS were included in the study. The procedures were performed under general anaesthesia, in lithotomy, and initiated on the side in which the patient was clinically symptomatic or on the side in which the stone was smaller. Read More

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December 2018

Lu-DOTA-HYNIC-Lys(Nal)-Urea-Glu: Biokinetics, Dosimetry, and Evaluation in Patients with Advanced Prostate Cancer.

Contrast Media Mol Imaging 2018 11;2018:5247153. Epub 2018 Nov 11.

Departamento de Medicina Nuclear, Instituto Nacional de Cancerología, Ciudad de México 14000, Mexico.

SPECT/CT images in patients have demonstrated the ability of [Tc]Tc-EDDA/HYNIC-Lys(Nal)-Urea-Glu ([Tc]Tc-iPSMA) to detect tumors and metastases of prostate cancer. Considering that theranostics combines the potential of therapeutic and diagnostic radionuclides in the same molecular probe, the aim of this research was to estimate the biokinetics and dosimetry of Lu-DOTA-HYNIC-Lys(Nal)-Urea-Glu (Lu-iPSMA) in healthy subjects and analyze the response in patients receiving Lu-iPSMA therapeutic doses. Lu-iPSMA was obtained from lyophilized formulations with radiochemical purities >98%. Read More

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November 2018

The role of para-aortic nodal irradiation in cervical cancer.

Rep Pract Oncol Radiother 2018 Nov-Dec;23(6):540-546. Epub 2018 Oct 9.

Department of Radiation Oncology, Médica Sur Hospital, México, DF, Mexico.

The current standard of care for locally advanced cervical cancer is whole pelvis and para-aortic radiation when indicated, delivered concomitantly with chemotherapy and brachytherapy. Para-aortic node involvement is a predictor of survival in locally advanced disease but presence of metastases is difficult to determine because the currently available imaging methods lack enough sensitivity to be able to detect accurately para-aortic metastases when surgical staging is not feasible. The objective of this review is to describe the current status of para-aortic lymph node irradiation in locally advanced cervical cancer. Read More

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October 2018

Whole body computed tomography in multi trauma patients: Review of the current literature.

Turk J Emerg Med 2018 Dec 3;18(4):142-147. Epub 2018 Oct 3.

Ümraniye Training and Research Hospital, Department of Emergency Medicine, Istanbul, Turkey.

Many authors adopt the Selected Computed Tomography (SCT) approach of the Advanced Trauma Life Support (ATLS) for the management of multiple trauma patients. In the SCT approach, the initial physical examination is followed by conventional radiography (cervical X-ray, chest X-ray, pelvic X-ray and Focused Abdominal Sonography in Trauma (FAST)), and the computed tomography (CT) of the specific body regions if indicated. An alternative to this traditional approach is the Whole-body Computed Tomography (WBCT) protocol, which became widespread all over the world in the last two decades to minimize the rate of missed injuries and decrease the mortality rate. Read More

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December 2018

Indication for CT following index finger metacarpophalangeal joint dislocation - A case report.

Trauma Case Rep 2018 Dec 27;18:31-36. Epub 2018 Nov 27.

Royal Alexandra Hospital, Corsebar Road, Paisley PA2 9PN, Scotland, United Kingdom.

Currently Kaplan's criteria on examination are used as the gold standard diagnostic tool for complex dorsal dislocations of the index finger Metacarpophalangeal joint. Our case report reveals a situation when the diagnosis was obscure and when conventional X-rays were not beneficial. With the use of CT imaging we were able to confirm the diagnosis of complex dorsal dislocation of the index finger Metacarpophalangeal joint and also reveal multiple other injuries. Read More

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December 2018

Contrast-Enhanced Ultrasound to Monitor Early Recurrence of Primary Hepatocellular Carcinoma after Curative Treatment.

Biomed Res Int 2018 7;2018:8910562. Epub 2018 Nov 7.

Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China.

Objective: To evaluate contrast-enhanced ultrasound (CEUS) for monitoring early intrahepatic recurrence of primary hepatocellular carcinoma (HCC) after curative treatment.

Methods: We prospectively analyzed 97 patients (124 nodules) with primary HCC who underwent hepatic resection or radiofrequency ablation and subsequently experienced intrahepatic recurrence. Patients were assessed with conventional ultrasound and CEUS. Read More

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November 2018

Spinal phantom comparability study of Cobb angle measurement of scoliosis using digital radiographic imaging.

J Orthop Translat 2018 Oct 26;15:81-90. Epub 2018 Oct 26.

Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China.

Background: Computed radiography (CR), digital radiography (DR) and biplanar radiography (EOS™ imaging system) are common imaging tools for radiographic evaluation of adolescent idiopathic scoliosis (AIS). The effect of imaging methods in relation to later-on Cobb angle measurements on radiographs is not yet quantified. The study aimed to examine the compatibility between CR, DR and EOS for scoliotic quantification by evaluating the reliability, agreement of different imaging methods, and assessing the prediction performance for EOS measurement from that of CR and DR. Read More

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October 2018

Usefulness of neuroimaging and immunohistochemical study for accurate diagnosis of chordoid glioma of the third ventricle: A case report and review of the literature.

Surg Neurol Int 2018 2;9:226. Epub 2018 Nov 2.

Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan.

Background: Chordoid glioma of the third ventricle is a rare neuroepithelial tumor characterized by a unique histomorphology within the third ventricular region, but with radiological and histopathological features mimicking benign lesions such as meningioma. We report a case of chordoid glioma of the third ventricle and suggest a useful indicator for accurate diagnosis.

Case Description: A previously healthy 46-year-old woman was admitted to our hospital with mild headache. Read More

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November 2018

Cardiac stress testing and coronary artery disease in liver transplantation candidates: Meta-analysis.

World J Hepatol 2018 Nov;10(11):877-886

School of Medicine, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Brazil.

Aim: To evaluate the diagnostic value of dobutamine stress echocardiography (DSE) and myocardial perfusion scintigraphy (MPS) in predicting coronary artery disease (CAD) in cirrhotic patients listed for liver transplantation (LT), using invasive coronary angiography (ICA) as gold-standard.

Methods: Retrieval of studies was based on Medical Subject Headings and Health Sciences Descriptors, which were combined using Boolean operators. Searches were run on the electronic databases Scopus, Web of Science, EMBASE, MEDLINE (PubMed), BIREME (Biblioteca Regional de Medicina), LILACS (Latin American and Caribbean Health Sciences Literature), Cochrane Library for Systematic Reviews and Opengray. Read More

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November 2018

Optical coherence tomography findings in patients prior to cataract surgery regarded as unremarkable with ophthalmoscopy.

PLoS One 2018 11;13(12):e0208980. Epub 2018 Dec 11.

Department of Ophthalmology, University Medical Center Goettingen, Germany.

Purpose: To investigate the feasibility and diagnostic benefit of routinely performed preoperative macular spectral-domain (SD-) optical coherence tomography (OCT) for the detection of macular pathology in patients with normal biomicroscopic funduscopy prior to cataract surgery.

Methods: Prospective, single center study. A total of 162 eyes of 123 consecutive patients referred for cataract surgery with a visual acuity better than 20/100, absence of macular symptoms such as metamorphopsia, no history of previous intravitreal procedures and a normal funduscopic appearance on biomicroscopy underwent an additional SD-OCT-examination prior to cataract surgery. Read More

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December 2018

Autoimmune hypoglycaemia caused by alpha-lipoic acid: a rare condition in Caucasian patients.

Endocrinol Diabetes Metab Case Rep 2018 Dec 11;2018. Epub 2018 Dec 11.

ENETS Center of Excellence, Department of Medicine, University of Verona, Verona, Italy.

Insulin autoimmune syndrome (IAS), a rare cause of autoimmune hyperinsulinaemic hypoglycaemia, is relatively well known in Japan. The incidence in Caucasians is less than one-fifth of that reported in Japanese people, but it is becoming increasingly recognised worldwide in non-Asians as well. Drugs containing sulphydryl groups are known to be associated with the disease in genetically predisposed individuals. Read More

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December 2018
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X-ray Computed Tomography for Flame-Structure Analysis of Laminar Premixed Flames.

Combust Flame 2019 Feb 28;200:142-154. Epub 2018 Nov 28.

Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA.

Quantitative X-ray computed tomography (XCT) diagnostics for reacting flows are developed and demonstrated in application to premixed flames in open and optically inaccessible geometries. A laboratory X-ray scanner is employed to investigate methane/air flames that were diluted with krypton as an inert radiodense tracer gas. Effects of acquisition rate and tracer gas concentration on the signal-to-noise ratio are examined. Read More

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February 2019

Successful medical management and rehabilitation of exercise-induced dorsal scapular luxation in an ultramarathon endurance sled dog with magnetic resonance imaging diagnosis of grade II serratus ventralis strain.

Can Vet J 2018 Dec;59(12):1329-1332

Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA (Frye); Department of Veterinary Medicine, University of Alaska Fairbanks, Fairbanks, Alaska, USA (Hansen); Department of Veterinary Biosciences and Diagnostic Imaging, University of Georgia, Athens, Georgia, USA (Gendron); Friendship Surgical Specialists of the Friendship Hospital for Animals, Washington, DC, USA (von Pfeil).

Dorsal displacement of the scapula in dogs is rare and often traumatic. This report describes dorsal luxation of the scapula in a sled dog. This case is unique given the injury was sport-related. Read More

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December 2018

K-edge subtraction imaging for coronary angiography with a compact synchrotron X-ray source.

PLoS One 2018 10;13(12):e0208446. Epub 2018 Dec 10.

Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

About one third of all deaths worldwide can be traced back to cardiovascular diseases. An interventional radiology procedure for their diagnosis is Digital Subtraction Angiography (DSA). An alternative to DSA is K-Edge subtraction (KES) imaging, which has been shown to be advantageous for moving organs and eliminating image artifacts caused by patient movement. Read More

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December 2018

Towards quantitative perfusion MRI of the lung in COPD: The problem of short-term repeatability.

PLoS One 2018 10;13(12):e0208587. Epub 2018 Dec 10.

Department of Diagnostic & Interventional Radiology, University Hospital of Heidelberg, Heidelberg, Germany.

Purpose: 4D perfusion magnetic resonance imaging (MRI) with intravenous injection of contrast agent allows for a radiation-free assessment of regional lung function. It is therefore a valuable method to monitor response to treatment in patients with chronic obstructive pulmonary disease (COPD). This study was designed to evaluate its potential for monitoring short-term response to hyperoxia in COPD patients. Read More

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December 2018
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Diagnostic Utility of [11C]DTBZ Positron Emission Tomography In Clinically Uncertain Parkinsonism: Experience of a Single Tertiary Center.

Rev Invest Clin 2018 ;70(6):285-290

Movement Disorders Clinic. Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico.

Background: The use of single-photon emission computed tomography and positron emission tomography (PET) has proven to be helpful in differentiating Parkinson's disease (PD) from other movement disorders with a sensitivity of up to 95%.

Objective: The objective of this study was to determine the accuracy of [11C]DTBZ PET imaging in patients with clinically uncertain parkinsonism from a tertiary referral center in Mexico City.

Materials And Methods: Patients who underwent [11C]DTBZ PET brain scan due to clinically uncertain parkinsonism where divided into two groups: PD or non-PD. Read More

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January 2018

Ultrasonography of the late-stage knee osteoarthritis prior to total knee arthroplasty: comparison of the ultrasonographic, radiographic and intra-operative findings.

Sci Rep 2018 Dec 10;8(1):17742. Epub 2018 Dec 10.

Department of Diagnostic Radiology, Oulu University Hospital, P.O. Box 50, 90029, Oulu, Finland.

The purpose of this study was to assess the effectiveness of the ultrasonography (US) on detecting osteoarthritis of the knee, and compare US and radiographic findings to intraoperative total knee arthroplasty (TKA) findings. Fifty-seven late-stage osteoarthritic knees undergoing TKA were evaluated with US and radiography. Standard knee US assessing femoral cartilage damage, osteophytes, effusion, synovitis, and meniscal extrusion was performed. Read More

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December 2018

[Leiomyosarcoma of the adrenal gland - two cases report].

Pol Merkur Lekarski 2018 Nov;45(269):189-191

Maria Skłodowska-Curie Institute - Oncology Center of Warsaw, Poland: Department of Soft Tissue/Bone Sarcoma and Melanoma.

Primary adrenal leiomyosarcomas are very rare adrenal mesenchymal tumours, only few dozen has been reported in the English language literature so far. We present two cases of patients with primary adrenal leiomyoosarcomas. 80 year-old female admitted with left adrenal tumour with presumptive diagnosis of nonadenoma, laparoscopic adrenalectomy was performed and 85 year-old man who underwent surgical resection by laparotomy of adrenal tumour suspected for adrenal carcinoma. Read More

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November 2018

Posterior reversible encephalopathy syndrome.

Curr Opin Neurol 2018 Dec 10. Epub 2018 Dec 10.

Center for Stroke Research Berlin (CSB).

Purpose Of Review: Posterior reversible encephalopathy syndrome (PRES) is a clinicoradiological syndrome characterized by acute cerebral endotheliopathy with consecutive disruption of the blood-brain barrier and vasogenic edema. Since its first description in 1996, PRES is increasingly recognized. However, many aspects of this syndrome with its wide spectrum of clinical and radiological features are still incompletely understood. Read More

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December 2018

Diagnostic Value of Contrast-Enhanced Spectral Mammography in Comparison to Magnetic Resonance Imaging in Breast Lesions.

J Comput Assist Tomogr 2018 Dec 7. Epub 2018 Dec 7.

From the Department of Radiology and.

Objective: The aim of this study was to evaluate the diagnostic value between contrast-enhanced spectral mammography (CESM) and breast magnetic resonance imaging (MRI) in breast disease.

Methods: Two hundred thirty-five patients who were suspected of having breast abnormalities by clinical examination or mammography underwent CESM and MRI examination. Using histopathologic results as the criterion standard, the diagnostic performance of CESM and MRI was investigated. Read More

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December 2018
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Rare respiratory diseases in the ICU: when to suspect them and specific approaches.

Curr Opin Crit Care 2018 Dec 5. Epub 2018 Dec 5.

Université Paris Est Créteil, Faculté de Médecine de Créteil, Groupe de Recherche Clinique CARMAS, Créteil.

Purpose Of Review: A prompt identification of the cause of acute respiratory failure (ARF)/acute respiratory distress syndrome (ARDS) is required in order to initiate a targeted treatment. Yet, almost 10% of ARDS patients have no identified ARDS risk factor at ARDS diagnosis. Numerous rare causes of ARF have been reported in this setting. Read More

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December 2018
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