Related ArticlesCo-Occurring Psychosocial Problems and Multiple Sexual Partners among Men Who Have Sex with Men in Shanghai, China: A Syndemic Approach. J Sex Res. 2018 09;55(7):892-901 Authors: Wang Z, Zhao X, Zhang Z, Luo M, Shen Q, Dong Y, Wang Y, Cai Y Abstract We aimed to apply syndemic theory to verify the association and reinforcing effects between psychosocial problems and multiple sexual partners (MSP) of men who have sex with men (MSM) in Shanghai,...
Tue Nov 19, 2019 13:30
"אמר ר' יונתן דבית גוברין, ארבעה לשונות נאים שישתמש בהן העולם. ואילו הן: לעז [יווני] לזמר, רומי לקרב, סורסי [ארמי] לאילייא [קינה], עברי לדיבור. ויש אומרים, אף אשורי לכתב" (ירושלמי מגילה א ח; עא ע"ב) גלוסר המילים השאולות מן היוונית ומן הרומית במקורות היהודיים הבתר־מקראיים לרכישה כעת בחנות הספרים שלנו במשך כאלף שנים מאז כיבוש ארץ ישראל בידי אלכסנדר מוקדון בשנת 332 לפסה"נ ועד כיבושה בידי המוסלמים בשנת 638 לסה"נ ישבו יוונים ורומים בארץ. מתקופה ארוכה זו יש בידינו עדויות רבות למגעים תרבותיים בין היוונים...
Tue Nov 19, 2019 13:01
Publication date: January 2020Source: Annals of Anatomy - Anatomischer Anzeiger, Volume 227Author(s):
Tue Nov 19, 2019 12:36
Objectives The objective of this study was to compare gadobutrol-enhanced gradient-echo sequence (GRE) acquisition with T2-prepared non–contrast-enhanced steady-state free precession (SSFP) in coronary magnetic resonance angiography at 1.5 T. Methods Twenty-one subjects successfully completed GRE and SSFP acquisition. Signal-to-noise ratio (SNR), contrast-to-noise ratio, image quality, sharpness, visibility, length, and lumen diameter of vessels were analyzed by 2 experienced radiologists. ...
Fri Nov 01, 2019 02:00
Objective Cervical lymph node metastasis (LNM) is associated with local recurrence and distant metastasis in papillary thyroid carcinoma (PTC). This study was to assess magnetic resonance imaging (MRI) characteristics for predicting cervical LNM in PTC. Materials and Methods A total of 119 patients with 154 PTC examined by MRI were assessed. According to inclusion and exclusion criteria, 78 subjects (78 tumors) were included in the final analysis. Conventional MRI findings and apparent diffusion...
Fri Nov 01, 2019 02:00
Ovarian cancer is the second most common gynecologic malignancy in the United States. Ovarian cancer has a dismal prognosis when diagnosed at an advanced stage. Therapy for these cancers is determined not only by stage but also by their heterogeneous pathologic features, genetic mutations, and biology. In this review, we will discuss types of epithelial ovarian cancer, and their associated genetic mutations and the implications for imaging and treatment.
Fri Nov 01, 2019 02:00
Objective Silent magnetic resonance angiography (MRA) was compared with time-of-flight (TOF)–MRA in imaging of arteriovenous malformations (AVMs) of the brain. Methods Thirty-five consecutive patients with AVMs of the brain were included. Quantitative analyses were performed by measuring both signal-to-noise ratio and contrast-to-noise ratio of the nidus. Qualitative analysis (scores 1–4) was performed by evaluating depictions of feeding arteries and draining veins independently by 2 reviewers. ...
Fri Nov 01, 2019 02:00
Von Meyenburg complexes, also known as biliary hamartomas, are ductal plate malformations that are usually diagnosed on imaging studies when there are multiple as small hepatic cysts. However, because of variations in histology, they actually have a wide spectrum of imaging appearances ranging from solid, to mixed solid and cystic, to cystic lesions. The objective of the review is to provide up-to-date information about the embryopathogenesis of von Meyenburg complexes, their imaging appearances,...
Fri Nov 01, 2019 02:00
Accurate oncological staging for early detection is of utmost importance in patient care and increasing the overall patient survival outcome. Hybrid imaging in the form of positron emission tomography (PET)/computed tomography has been successfully implemented in oncological imaging and, where available, has been used consistently in patients with gynecologic malignancies. The implementation of PET/magnetic resonance imaging (MRI) enables high-quality assessment of gynecological malignancies by combining...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to assess renal lesions measuring less than 20 Hounsfield units (HU) on noncontrast computed tomography (NCT). Methods Twenty-one (18.1%) of 116 consecutive pathologically proven renal cell carcinomas measured less than 20 HU on NCT and were compared with 40 confirmed benign cysts also measuring less than 20 HU. All lesions were assessed qualitatively (heterogeneous or homogenous) by 3 blinded readers and quantitatively with commercially available...
Fri Nov 01, 2019 02:00
Objectives Breast imaging can offer great information about breast cancer heterogeneity. The purpose of this study was to analyze the relationship between apparent diffusion coefficient (ADC) values and various prognostic factors and investigate whether ADC values are useful for breast cancer diagnosis, evaluation of treatment response, and determination of prognosis. Methods A total of 111 cases of breast cancer were included in this study. Magnetic resonance findings were recorded according...
Fri Nov 01, 2019 02:00
Objective The objective of this study is to compare the value of monoexponential and biexponential approach to the diffusion-weighted magnetic resonance imaging signal in the prediction of the liver fibrosis. Methods Forty patients with hepatitis C were included. Quantification of the apparent diffusion coefficient (ADC) and pure molecular diffusion (D), pseudodiffusion (D*), and perfusion fraction (f) was performed using 9 b values (b = 0, 20, 50, 100, 200, 400, 600, 800, 1000 s/mm2). Results...
Fri Nov 01, 2019 02:00
Purpose Compression of the sciatic nerve in its path along the piriformis muscle can produce sciatica-like symptoms. There are 6 predominant types of sciatic nerve variations with type 1 being the most common (84.2%), followed by type 2 (13.9%). However, there is scarce literature on the prevalence of sciatic nerve variation in those diagnosed with sciatica. Materials and Methods The charts of 95 patients clinically diagnosed with sciatica who had a magnetic resonance imaging of the pelvis/hip...
Fri Nov 01, 2019 02:00
Purpose The purpose of this study was to evaluate the features of sclerosing angiomatoid nodular transformation (SANT) in spleen on the imaging of computed tomography (CT) and magnetic resonance (MR). Materials and Methods From July 2006 to April 2017, 12 patients with SANT confirmed by pathology were evaluated in a retrospective study. Eight patients were with CT imaging only, 2 patients were with MR imaging only, and 2 patients were with both CT and MR. Three professional senior radiologists...
Fri Nov 01, 2019 02:00
Endometriosis (EN) is a common gynecological condition characterized by the presence of functional endometrium located outside the uterine cavity. Sciatic nerve (SN) is rarely affected by EN. Magnetic resonance imaging allows a direct visualization of the spinal and SN, and it is the modality of choice for the study of SN involvement in extrapelvic EN. We report a case of an endometrioma located in the right SN with a systematic review of the literature.
Fri Nov 01, 2019 02:00
Aim This study aimed to evaluate potential dose savings on a revised protocol for whole-body computed tomography and image quality after implementing Adaptive Statistical Iterative Reconstruction V (ASiR-V) algorism for trauma patients and compare it with routine protocol. Materials and Methods One hundred trauma patients were classified into 2 groups using 2 different scanning protocols. Group A (n = 50; age, 32.48 ± 8.09 years) underwent routine 3-phase protocol. Group B (n = 50; age, 35.94...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to identify radiological and clinical factors associated with early mortality in malignant superior vena cava syndrome (SVCS). Materials and Methods Chest computed tomography studies of 127 patients with malignancy-associated SVCS were retrospectively reviewed. Involvement of SVC and tributaries, pleural and pericardial effusions, pulmonary artery involvement, and ancillary findings were documented. Univariate and multivariate models determined associations...
Fri Nov 01, 2019 02:00
Purpose This study aimed to prospectively compare the image quality and visibility of urinary stone on computed tomographic (CT) images at multiple radiation exposure levels from the same patient reconstructed with sinogram-affirmed iterative reconstruction (SAFIRE). Methods This study included 760 patients with urinary stone who underwent CT with simultaneous acquisition at 6 exposures per patient (100% filtered back projection, 75%, 50%, 37.5%, 25%, and 12.5% SAFIRE). Two radiologists independently...
Fri Nov 01, 2019 02:00
Objective To explore the exposure parameters with minimized radiation dose for accurate pulmonary nodule volumetry using low-dose computed tomography (LDCT). Methods An anthropomorphic chest phantom with 11 pulmonary nodules (6 solid nodules and 5 ground-glass opacities) was scanned using 256-slice multidetector computed tomography scanner at various tube voltage and current (combinations of 80, 100 and 120 kV with 10 to 30 mAs). Raw data sets were reconstructed using the hybrid iterative...
Fri Nov 01, 2019 02:00
We present the case of unilateral nonhemorrhagic adrenal infarct in a 29-week pregnant 21-year-old woman. The patient presented with right upper quadrant pain, nausea, and vomiting. Ultrasonography of the right upper quadrant and appendix was negative for pathology. Magnetic resonance imaging of the abdomen demonstrated a right nonhemorrhagic adrenal infarct, subsequently confirmed with limited computed tomography of the upper abdomen. This case discusses the clinical presentation and pertinent imaging...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to evaluate the diagnostic performance of magnetic resonance imaging (MRI) in detecting the secondary breast cancer among women with a personal history of the lesion. Materials and Methods We retrospectively reviewed breast MRI examinations performed between 2007 and 2011. A total of 798 women with a history of breast cancer were included in the study. Cancer detection rate, positive predictive value (PPV), recall rate, sensitivity, and specificity...
Fri Nov 01, 2019 02:00
Purpose This study aimed to describe the computed tomographic (CT) findings of gastric hepatoid adenocarcinoma (GHA) and determine features distinguishing it from gastric adenocarcinoma (GA). Methods Computed tomographic images of pathologically verified GHA (n = 11) and GA (n = 38) were retrospectively reviewed. α-Fetoprotein (AFP), carcinoembryonic antigen (CEA), and CT findings were assessed in our study. Computed tomographic findings included the location, distribution, growth pattern,...
Fri Nov 01, 2019 02:00
Purpose This study aimed to evaluate the image quality and degree of metal artifact reduction using the new-generation gemstone spectral imaging (GSI) and metal artifact reduction software (MARs) and to demonstrate the optimal monochromatic energy level for dual-energy cerebral computed tomography angiography (CTA) in patients with intracranial aneurysm after endovascular treatment. Material and Methods A total of 20 patients with cerebral aneurysms treated with coils or clips underwent CTA...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to assess the impact of preprocedural time-out on workflow and patient safety in computed tomography (CT)–guided procedures. Methods In this institutional review board–approved, Health Insurance Portability and Accountability Act–compliant study, preprocedure time-out was assessed by an independent observer in CT-guided procedures performed from January 16, 2018, to May 15, 2018. Anonymous survey of 302 radiology team members involved in image-guided...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to investigate the contrast-to-noise ratio (CNR) between cortical gray matter (GM) and subcortical white matter (WM) across the cortex in relation to the ability of 3-dimensional fluid attenuated inversion recovery and 3-dimensional double inversion recovery to distinguish between cortical lesions (CLs) and juxtacortical lesions (JCs). Methods A total of 38 multiple sclerosis patients underwent magnetic resonance imaging. Two neuroradiologists scored...
Fri Nov 01, 2019 02:00
Idiopathic pulmonary fibrosis is the commonest interstitial lung disease. Radiologists play an essential role in making an accurate diagnosis, and this is necessary given its prognostic implications and potential use of antifibrotic therapies. This review highlights the radiologic features and imaging classification of fibrosis with reference to recently updated international guidelines and emphasizing the importance of the multidisciplinary team in idiopathic pulmonary fibrosis diagnosis and, in...
Fri Nov 01, 2019 02:00
Objective The objective of this study was to determine the value of dual-energy computed tomography (DECT) for the diagnosis of cervical lymph node metastasis in papillary thyroid cancer. Methods The normalized iodine concentration (NIC) and the slope of the spectral Hounsfield unit curve (λHU) in the arterial and venous phases were measured using iodine-overlay images and spectral curves. Quantitative DECT data and qualitative conventional CT data were analyzed by radiologists. Results...
Fri Nov 01, 2019 02:00
The aim of this article was to review computed tomography angiography and magnetic resonance angiography of pulmonary atresia with ventricular septal defect. This disorder is a rare complex congenital heart disease. Preoperative imaging of pulmonary atresia with ventricular septal defect with computed tomography angiography and magnetic resonance angiography is important for complete anatomical delineation and planning for treatment. Preoperative imaging used for assessment of the main pulmonary...
Fri Nov 01, 2019 02:00
Background Athletes are prone to both acute and chronic overuse injuries of the elbow joint. The purpose of this study was to describe the frequency, anatomic distribution, and severity of magnetic resonance imaging (MRI)–detected elbow joint injuries among athletes who competed in the Rio de Janeiro 2016 Summer Olympics. Methods All sports injuries reported by the National Olympic Committee medical teams and the Organizing Committee medical staff during the 2016 Summer Olympics were analyzed....
Fri Nov 01, 2019 02:00
Abstract Whether there is a general moral obligation to obey the law, often referred to as ‘political obligation’, is an enduring question in contemporary legal and political philosophy. Theories are continually being formulated, criticized, and reformulated as theorists attempt to settle this issue. However, there yet remains no general consensus as to whether any theory successfully answers this question in either the affirmative or the negative. I propose the legal doctrine...
Tue Nov 19, 2019 02:00
Abstract Severe pelvic fractures often prove difficult for surgeons as they require patient-specific surgical treatment plans and customized equipment. Developing virtual patient-specific 3D pelvis models would ease the surgical planning process and enable development of custom fixation plates. This paper aims to examine pelvic symmetry to conclude whether the contralateral side may be used as a reference model for the fractured side of the pelvis. Fourteen subjects with intact...
Tue Nov 19, 2019 02:00
Journal of International Medical Research, Ahead of Print.
Mon Nov 18, 2019 09:18
Journal of International Medical Research, Ahead of Print.
Mon Nov 18, 2019 09:16
Technology in Cancer Research &Treatment, Volume 18, Issue , January-December 2019. Radiotherapy is the main treatment strategy for nasopharyngeal carcinoma. A major factor affecting radiotherapy outcome is the accuracy of target delineation. Target delineation is time-consuming, and the results can vary depending on the experience of the oncologist. Using deep learning methods to automate target delineation may increase its efficiency. We used a modified deep learning model called U-Net to automatically...
Mon Nov 18, 2019 12:43
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