114,317 results match your criteria considered imaging


Should twin-mode white-light and virtual chromoendoscopy of pre-defined mucosal stations be considered a standard of care for transnasal panendoscopy?

Clin Otolaryngol 2021 Apr 17. Epub 2021 Apr 17.

Robert White Professor of Laryngology and Clinical Informatics, University of Southampton, UK.

Expeditious diagnosis and confident exclusion of cancer as the cause of patient symptoms is central to achieving the long-term NHS Plan's objective of diagnosing 75% of cancers at an early stage in order to save 55,000 lives a year. For foregut cancers, the principal diagnostic methodology is symptom-directed visualisation of the relevant subset of at-risk mucosal stations between the lips and the second part of the duodenum. In selected cases, mucosal visualisation is supplemented by additional tests like radiological evaluation of swallowing, cross-sectional imaging, and ultrasound scanning. Read More

View Article and Full-Text PDF

Advanced imaging improves detection of baffle leaks and stenoses after atrial switch compared with transthoracic echocardiography.

Int J Cardiovasc Imaging 2021 Apr 17. Epub 2021 Apr 17.

Arkansas Children's Hospital, Little Rock, AR, USA.

Current guidelines for adults with atrial switch repair recommend baseline cardiovascular magnetic resonance (CMR) for assessment of ventricular size and function, systemic and venous baffle obstruction and leaks, and valvular function. It also recommends transthoracic echocardiography (TTE) for outpatient follow up. Many such patients with implanted cardiac devices may need cardiac computed tomography (CCT) when CMR is not feasible. Read More

View Article and Full-Text PDF

Systematic evaluation of endometriosis by transvaginal ultrasound can accurately replace diagnostic laparoscopy, mainly for deep and ovarian endometriosis.

Hum Reprod 2021 Apr 16. Epub 2021 Apr 16.

Gynecologic Division, BP-A Beneficência Portuguesa de São Paulo, São Paulo, SP, Brazil.

Study Question: What is the sensitivity and the specificity of preoperative transvaginal ultrasound with bowel preparation (TVUS-BP) compared to diagnostic laparoscopy (DL) for the identification of ovarian and deep sites of endometriosis?

Summary Answer: DL was able to detect retrocervical, ovarian, and bladder endometriosis with similar sensitivity and specificity as TVUS-BP, whereas for vaginal and rectosigmoid endometriosis, DL had lower sensitivity and specificity than TVUS-BP.

What Is Known Already: TVUS-BP is a non-invasive examination with good accuracy for diagnosing ovarian and deep endometriosis. DL is expensive and can lead to surgical complications. Read More

View Article and Full-Text PDF

Management and infection control practices in a Taiwanese radiology department during the COVID-19 outbreak.

J Microbiol Immunol Infect 2021 Mar 30. Epub 2021 Mar 30.

Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. Electronic address:

The radiology department was categorized as a "high risk area" during the severe acute respiratory syndrome (SARS) outbreak in 2003 and is similarly considered a "high risk area" during the current coronavirus (COVID-19) pandemic. The purpose of infection control is to isolate patients with suspected or confirmed COVID-19 from uninfected people by utilizing separate equipment, spaces, and healthcare workers. Infection control measures should be prioritized to prevent the nosocomial spread of infection. Read More

View Article and Full-Text PDF

Laparoscopic exploration of the retroperitoneum in a gunshot victim: A case report.

Int J Surg Case Rep 2021 Apr 6;82:105863. Epub 2021 Apr 6.

Department of Surgery, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.

Introduction: Non-operative management and minimally invasive surgery reduce the burden of negative laparotomies in patients with penetrating gunshot wounds (GSW). Careful patient selection is key. Although challenging, in experienced hands laparoscopic exploration of the retroperitoneal space can be carried out. Read More

View Article and Full-Text PDF

[Acute perforated appendicitis with pre-surgical diagnosis and bilateral inguinal hernia in preterm infants].

Rev Chil Pediatr 2020 Dec 21;91(6):936-940. Epub 2020 Oct 21.

Clínica Las Condes, Santiago, Chile.

Introduction: Acute neonatal appendicitis is a rare pathology, with few reports in the last 30 years. Since its clinical presentation and imaging studies are non-specific, most cases are diagnosed during a surgical pro cedure.

Objective: To describe a neonatal case of acute perforated appendicitis associated with later appearance of inguinal hernia, with pre-surgical diagnosis and treated through laparoscopy. Read More

View Article and Full-Text PDF
December 2020

Extreme capsule is a bottleneck for ventral pathway.

IBRO Neurosci Rep 2021 Jun 3;10:42-50. Epub 2021 Feb 3.

Department of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran.

As neuroscience literature suggests, extreme capsule is considered a whiter matter tract. Nevertheless, it is not clear whether extreme capsule itself is an association fiber pathway or only a bottleneck for other association fibers to pass. Via our review, investigating anatomical position, connectivity and cognitive role of the bundles in extreme capsule, and by analyzing data from the dissection, it can be argued that extreme capsule is probably a bottleneck for the passage of uncinated fasciculus (UF) and inferior fronto-occipital fasciculus (IFOF), and these fasciculi are responsible for the respective roles in language processing. Read More

View Article and Full-Text PDF

Biceps Femoris Compensates for Semitendinosus After Anterior Cruciate Ligament Reconstruction With a Hamstring Autograft: A Muscle Functional Magnetic Resonance Imaging Study in Male Soccer Players.

Am J Sports Med 2021 Apr 16:3635465211003309. Epub 2021 Apr 16.

Department of Rehabilitation Sciences, Ghent University, Faculty of Medicine and Health Sciences, Ghent, Belgium.

Background: Rates of reinjury, return to play (RTP) at the preinjury level, and hamstring strain injuries in male soccer players after anterior cruciate ligament reconstruction (ACLR) remain unsatisfactory, due to multifactorial causes. Recent insights on intramuscular hamstring coordination revealed the semitendinosus (ST) to be of crucial importance for hamstring functioning, especially during heavy eccentric hamstring loading. Scientific evidence on the consequences of ST tendon harvest for ACLR is scarce and inconsistent. Read More

View Article and Full-Text PDF

Bosniak Classification of Cystic Renal Masses, Version 2019: A Pictorial Guide to Clinical Use.

Radiographics 2021 Apr 16:200160. Epub 2021 Apr 16.

From the Department of Medical Imaging, The Ottawa Hospital, University of Ottawa, 1053 Carling Ave, Ottawa, ON, Canada K1H 1H6 (N.S.); Departments of Radiology (M.S.D., N.E.C.) and Urology (M.S.D.), Michigan Medicine, University of Michigan, Ann Arbor, Mich; Joint Department of Medical Imaging, University Health Network, Mount Sinai Hospital and Women's College Hospital, University of Toronto, Toronto, ON, Canada (S.K.); Department of Radiology, University of Nebraska Medical Center, Omaha, Neb (E.A.E.); Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Tex (I.P.); Department of Radiology, New York University Langone Medical Center, New York, NY (N.H.); Department of Radiology and Diagnostic Imaging, Hospital Israelita Albert Einstein, São Paulo, Brazil (R.H.B.); Department of Radiology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass (A.S.); and Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.G.S.).

Cystic renal masses are commonly encountered in clinical practice. In 2019, the Bosniak classification of cystic renal masses, originally developed for CT, underwent a major revision to incorporate MRI and is referred to as the Bosniak Classification, version 2019. The proposed changes attempt to define renal masses (ie, cystic tumors with less than 25% enhancing tissue) to which the classification should be applied; emphasize specificity for diagnosis of cystic renal cancers, thereby decreasing the number of benign and indolent cystic masses that are unnecessarily treated or imaged further; improve interobserver agreement by defining imaging features, terms, and classes of cystic renal masses; reduce variation in reported malignancy rates for each of the Bosniak classes; incorporate MRI and to some extent US; and be applicable to all cystic renal masses encountered in clinical practice, including those that had been considered indeterminate with the original classification. Read More

View Article and Full-Text PDF

Tachyarrhythmia as a possible symptom of coronavirus in a neonate diagnosed with transposition of the great arteries.

J Card Surg 2021 Apr 16. Epub 2021 Apr 16.

Department of Surgery, Division of Cardiothoracic Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.

Background: The coronavirus disease 2019 (COVID-19) pandemic poses broad challenges to healthcare systems and providers. The manifestations of this disease are still being described in a variety of different contexts and patient populations.

Results: We report the case of a neonate who demonstrated COVID-19 after surgical correction of transposition of the great arteries. Read More

View Article and Full-Text PDF

Prominent Anterior Inferior Iliac Spine Morphologies Are Common in Patients with Acetabular Dysplasia Undergoing Periacetabular Osteotomy.

Clin Orthop Relat Res 2021 May;479(5):991-999

D. Nestorovski, L. M. Fowler, J. C. Clohisy, J. J. Nepple, Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA.

Background: The anterior inferior iliac spine (AIIS) prominence is increasingly recognized in the setting of femoroacetabular impingement (FAI). The AIIS prominence may contribute to decreased hip flexion after acetabular reorientation in patients with acetabular dysplasia. AIIS morphologies have been characterized in numerous populations including asymptomatic, FAI, and athletic populations, but the morphology of the AIIS in patients with symptomatic acetabular dysplasia undergoing periacetabular osteotomy (PAO) has not been studied. Read More

View Article and Full-Text PDF

Automated detection of pneumonia cases using deep transfer learning with paediatric chest X-ray images.

Br J Radiol 2021 Apr 16:20201263. Epub 2021 Apr 16.

Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.

Objective: Pneumonia is a lung infection and causes the inflammation of the small air sacs (Alveoli) in one or both lungs. Proper and faster diagnosis of pneumonia at an early stage is imperative for optimal patient care. Currently, chest X-ray is considered as the best imaging modality for diagnosing pneumonia. Read More

View Article and Full-Text PDF

Safety challenges related to the use of sedation and general anesthesia in pediatric patients undergoing magnetic resonance imaging examinations.

Pediatr Radiol 2021 Apr 16. Epub 2021 Apr 16.

Harvard Medical School, Boston, MA, USA.

The use of sedation and general anesthesia has facilitated the significant growth of MRI use among children over the last years. While sedation and general anesthesia are considered to be relatively safe, their use poses potential risks in the short term and in the long term. This manuscript reviews the reasons why MRI examinations require sedation and general anesthesia more commonly in the pediatric population, summarizes the safety profile of sedation and general anesthesia, and discusses an amalgam of strategies that can be implemented and can ultimately lead to the optimization of sedation and general anesthesia care within pediatric radiology departments. Read More

View Article and Full-Text PDF

Hyperammonemia-induced impaired consciousness following mFOLFOX6 therapy in a patient with recurrent rectal cancer.

Int J Clin Pharmacol Ther 2021 Apr 16. Epub 2021 Apr 16.

Objectives: FOLFOX is a standard chemotherapy regimen used to treat colorectal cancer. Adverse events associated with FOLFOX treatment include peripheral neuropathy and myelosuppression. This report discusses the case of a 64-year-old man with rectal cancer who developed hyperammonemia and impaired consciousness following initiation of mFOLFOX6 as a postoperative adjuvant therapy. Read More

View Article and Full-Text PDF

Comparison of Automated Breast Ultrasound and Hand-Held Breast Ultrasound in the Screening of Dense Breasts.

Rev Bras Ginecol Obstet 2021 Mar 15;43(3):190-199. Epub 2021 Apr 15.

Radiology Department, Diagnósticos da América (DASA), Barra da Tijuca, RJ, Brazil.

Objective:  To compare hand-held breast ultrasound (HHBUS) and automated breast ultrasound (ABUS) as screening tool for cancer.

Methods:  A cross-sectional study in patients with mammographically dense breasts was conducted, and both HHBUS and ABUS were performed. Hand-held breast ultrasound was acquired by radiologists and ABUS by mammography technicians and analyzed by breast radiologists. Read More

View Article and Full-Text PDF

Lateral compression type 1 (LC1) pelvic ring injuries: a spectrum of fracture types and treatment algorithms.

Eur J Orthop Surg Traumatol 2021 Apr 16. Epub 2021 Apr 16.

Department of Trauma and Orthopaedics, North Bristol NHS Trust, Southmead Hospital, Bristol, UK.

Lateral compression type 1 (LC1) fractures are the commonest pelvic ring injury. However, they represent a heterogenous spectrum of injury mechanisms and fracture patterns, resulting in a lack of strong evidence for a universally agreed treatment algorithm. Although consensus exists that LC1 fractures have a preserved posterior ligamentous complex and are vertically stable, controversy persists around defining internal rotational instability. Read More

View Article and Full-Text PDF

1,5-Disubstituted 1,2,3-Triazoles as Amide Bond Isosteres Yield Novel Tumor-Targeting Minigastrin Analogs.

ACS Med Chem Lett 2021 Apr 16;12(4):585-592. Epub 2021 Mar 16.

Ludwig Boltzmann Institute Applied Diagnostics, General Hospital of Vienna, 1090 Vienna, Austria.

1,5-Disubstituted 1,2,3-triazoles (1,5-Tz) are considered bioisosteres of amide bonds. However, their use for enhancing the pharmacological properties of peptides or proteins is not yet well established. Aiming to illustrate their utility, we chose the peptide conjugate [Nle]MG11 (DOTA-dGlu-Ala-Tyr-Gly-Trp-Nle-Asp-Phe-NH) as a model compound since it is known that the cholecystokinin-2 receptor (CCK2R) is able to accommodate turn conformations. Read More

View Article and Full-Text PDF

Paraplegia due to spinal meningioma during the third trimester of pregnancy: case report and literature review.

Spinal Cord Ser Cases 2021 Apr 15;7(1):31. Epub 2021 Apr 15.

Clinical Epidemilogy, Anesthesiolgy, Cúcuta, Norte Santander, Colombia.

Introduction: Spinal meningiomas represent 25-45% of intradural spinal tumors and ~2% of meningiomas of the central nervous system (CNS), and their occurrence during pregnancy is unusual. We present an updated literature review.

Case Report: A 36-year-old woman, at 32. Read More

View Article and Full-Text PDF

Energy drink-induced cardiomyopathy.

BMJ Case Rep 2021 Apr 15;14(4). Epub 2021 Apr 15.

Department of Cardiology and Division of Cardiovascular Sciences, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, UK

We report a case of severe biventricular heart failure potentially related to excessive energy drink consumption in a 21-year-old man. The patient presented with a 4-month history of shortness of breath on exertion, orthopnoea and weight loss. Transthoracic echocardiography demonstrated severely impaired biventricular systolic function and bilateral ventricular thrombi, subsequently confirmed on cardiac magnetic resonance imaging, which found in addition no oedema, inflammation or focal fibrosis. Read More

View Article and Full-Text PDF

Rosai-Dorfman-Destombes (RDD) disease presenting as palindromic rheumatism.

BMC Med Imaging 2021 Apr 15;21(1):72. Epub 2021 Apr 15.

Department of Radiology, University of California, UCSD Medical Center, 200 W Arbor Drive, San Diego, CA, 92103-2686, USA.

Background: Rosai-Dorfman-Destombes (RDD) disease, is a rare proliferative and inflammatory disorder of non-Langerhans cell histiocytes.

Case Presentation: We report a 35-year-old woman, who originally presented with recurrent episodes of lower extremity joint/bone pain and chronic nasal stuffiness and congestion. Her worsening nasal congestion was due to an obstructing nasal cavity lesion which was subsequently biopsied. Read More

View Article and Full-Text PDF

Resection of solitary abdominal wall metastasis of ascending colon cancer along the ventriculoperitoneal shunt: A case report.

Int J Surg Case Rep 2021 Apr 7;82:105869. Epub 2021 Apr 7.

Saitama Medical University International Medical Center, Department of Gastroenterological Surgery, 1397-1 Yamane, Hidaka, Saitama, Japan.

Introduction: Ventriculoperitoneal (VP) shunt is often placed as a treatment for hydrocephalus. Additionally, it is also not uncommon to perform laparoscopic surgery for colon cancer with a VP shunt in place. It is very rare for colorectal cancer to metastasize to an implanted VP shunt. Read More

View Article and Full-Text PDF

Using Organ Specific and Circulatory Biofluids to Screen Individuals at High Risk for Breast Cancer Presents Unique Challenges and Opportunities.

Authors:
Edward R Sauter

Cancer Epidemiol Biomarkers Prev 2021 Mar;30(3):429-431

Division of Cancer Prevention, NCI, Rockville, Maryland.

Intraductal assessment of the breast holds the potential to provide useful information regarding breast cancer risk assessment, early diagnosis, and/or response to therapy. Intraductal assessment can be through imaging (ductography), direct visualization (mammary ductoscopy), or evaluation of the intraductal fluid collected. The most common nonradiologic approaches to intraductal assessment that provide intraductal fluid for evaluation include breast nipple aspiration fluid (NAF), spontaneous nipple discharge (SND), mammary ductoscopy, and ductal lavage. Read More

View Article and Full-Text PDF

Acute Onset Variable and Progressive Trochlear Nerve Palsy and Ophthalmoparesis Secondary to Bilateral Carotid Cavernous Fistula.

J Binocul Vis Ocul Motil 2021 Apr 15:1-5. Epub 2021 Apr 15.

Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina.

: To describe a patient who presented with right unilateral white-eyed posteriorly-draining carotid-cavernous fistulas (CCF) causing an isolated, acute-onset trochlear nerve palsy with atypical progression to a contralateral left red-eyed anteriorly-draining CCF associated with orbital congestion.: A 74-year-old female presented with an acute onset incomitant right hypertropia consistent with the clinical diagnosis of a superior oblique palsy. Initial workup including MRI was normal. Read More

View Article and Full-Text PDF

Consensus on the Treatment and Follow-Up for Metastatic Castration-Resistant Prostate Cancer: A Report From the First Global Prostate Cancer Consensus Conference for Developing Countries (PCCCDC).

JCO Glob Oncol 2021 Apr;7:559-571

Oncology Institute of Southern Switzerland (IOSI), Bellinzona and Università della Svizzera Italiana, Lugano, Switzerland.

Purpose: To present a summary of the recommendations for the treatment and follow-up for metastatic castration-resistant prostate cancer (mCRPC) as acquired through a questionnaire administered to 99 physicians working in the field of prostate cancer in developing countries who attended the Prostate Cancer Consensus Conference for Developing Countries.

Methods: A total of 106 questions out of more than 300 questions addressed the use of imaging in staging mCRPC, treatment recommendations across availability and response to prior drug treatments, appropriate drug treatments, and follow-up, and those same scenarios when limited resources needed to be considered. Responses were compiled and the percentages were presented by clinicians to support each response. Read More

View Article and Full-Text PDF

Prognostic value of the nutmeg lung pattern/lymphangiectasia on fetal magnetic resonance imaging.

Pediatr Radiol 2021 Apr 15. Epub 2021 Apr 15.

Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.

Background: A nutmeg lung pattern on magnetic resonance imaging (MRI) is an imaging finding associated with pulmonary lymphangiectasia. However, the prognostic value of the nutmeg lung pattern is unknown.

Objective: To evaluate the clinical associations of nutmeg lung indicating lymphangiectasia on fetal lung MRI and its relationship with early mortality in fetuses with primary and secondary lymphangiectasia. Read More

View Article and Full-Text PDF

A rare case of primary effusion lymphoma in HIV negative patient: Diagnostic challenges and literature review.

Diagn Cytopathol 2021 Apr 15. Epub 2021 Apr 15.

Department of Pathology, Montefiore Hospital and Medical Center/Albert Einstein College of Medicine, New York, New York, USA.

We present a rare case of primary effusion lymphoma (PEL) in a 75 year old, HIV-negative male patient with multiple comorbidities. Imaging studies revealed a massive right pleural effusion and a significant lung collapse with multiple plural soft tissue nodules. Immediate thoracentesis was performed. Read More

View Article and Full-Text PDF

X-Ray and Molecular Imaging During Pregnancy and Breastfeeding-When Should We be Worried?

Radiat Prot Dosimetry 2021 Apr 14. Epub 2021 Apr 14.

Medical Radiation Physics Malmö, Department of Translational Medicine, Lund University, Malmö, SE-205 02 Malmö, Sweden.

Some of the ethically most sensitive issues in radiation protection arise at imaging of pregnant-and potentially pregnant-patients and of newborn. This article reviews the current literature and recommendations on imaging during pregnancy and breastfeeding. Risks related to alternative non-ionizing radiation methods are also considered. Read More

View Article and Full-Text PDF

Surgical Repair of Distal Biceps Femoris Avulsion Injuries in Professional Athletes.

Orthop J Sports Med 2021 Mar 26;9(3):2325967121999643. Epub 2021 Mar 26.

Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.

Background: Understanding the optimal management of distal biceps femoris avulsion injuries is critical for restoring preinjury function, restoring hamstring muscle strength, increasing range of motion, and minimizing risk of complications and recurrence. Due to the rarity of these injuries, prognosis and outcomes within the literature are limited to case reports and small case series.

Purpose: To assess the effect of surgical repair for acute distal avulsion injuries of the biceps femoris tendon on (1) return to preinjury level of sporting function and (2) time to return to preinjury level of sporting function, patient satisfaction, and complications. Read More

View Article and Full-Text PDF

An Unusual Complication following Gluteal Fat Grafting: A Case Report.

Plast Reconstr Surg Glob Open 2021 Apr 8;9(4):e3515. Epub 2021 Apr 8.

Plastic & Reconstructive Surgery Department, HaEmek Medical Center, Afula, Israel.

Subfascial abscess of the lateral thigh is a relatively uncommon complication following gluteal fat grafting due to their subclinical presentation. Despite its rarity, subfascial abscesses can be dangerous and life-threatening when diagnosis is delayed. In this case report, we present a 28-year-old woman who presented to our hospital with swelling and erythema following a gluteal fat grafting procedure performed abroad. Read More

View Article and Full-Text PDF

Delayed chylothorax in the absence of radiological evidence of rib or vertebral body fractures following blunt trauma.

J Surg Case Rep 2021 Apr 6;2021(4):rjab112. Epub 2021 Apr 6.

Department of Thoracic Surgery, Royal Stoke University Hospital, Stoke-on-Trent ST4 6QG, UK.

Our case report illustrates effective implementation of conservative measures without the need for more invasive procedures, which can be required in refractory cases. Our patient was a 42-year-old female who fell from a horse and presented with a 1-week history of dyspnoea. Investigations revealed her to have a large right chylothorax, which was treated conservatively with chest drainage and octreotide. Read More

View Article and Full-Text PDF