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https://www.readbyqxmd.com/read/28632786/diagnostic-accuracy-of-magnetic-resonance-computed-tomography-and-contrast-enhanced-ultrasound-in-radiological-multimodality-assessment-of-peribiliary-liver-metastases
#1
Vincenza Granata, Roberta Fusco, Orlando Catalano, Antonio Avallone, Raffaele Palaia, Gerardo Botti, Fabiana Tatangelo, Francesco Granata, Marco Cascella, Francesco Izzo, Antonella Petrillo
PURPOSE: We compared diagnostic performance of Magnetic Resonance (MR), Computed Tomography (CT) and Ultrasound (US) with (CEUS) and without contrast medium to identify peribiliary metastasis. METHODS: We identified 35 subjects with histological proven peribiliary metastases who underwent CEUS, CT and MR study. Four radiologists evaluated the presence of peribiliary lesions, using a 4-point confidence scale. Echogenicity, density and T1-Weigthed (T1-W), T2-W and Diffusion Weighted Imaging (DWI) signal intensity as well as the enhancement pattern during contrast studies on CEUS, CT and MR so as hepatobiliary-phase on MRI was assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28624924/evaluation-of-hepatic-fibrosis-a-review-from-the-society-of-abdominal-radiology-disease-focus-panel
#2
REVIEW
Jeanne M Horowitz, Sudhakar K Venkatesh, Richard L Ehman, Kartik Jhaveri, Patrick Kamath, Michael A Ohliger, Anthony E Samir, Alvin C Silva, Bachir Taouli, Michael S Torbenson, Michael L Wells, Benjamin Yeh, Frank H Miller
Hepatic fibrosis is potentially reversible; however early diagnosis is necessary for treatment in order to halt progression to cirrhosis and development of complications including portal hypertension and hepatocellular carcinoma. Morphologic signs of cirrhosis on ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI) alone are unreliable and are seen with more advanced disease. Newer imaging techniques to diagnose liver fibrosis are reliable and accurate, and include magnetic resonance elastography and US elastography (one-dimensional transient elastography and point shear wave elastography or acoustic radiation force impulse imaging)...
June 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28624015/imaging-modalities-in-the-diagnosis-of-pancreatic-adenocarcinoma-a-systematic-review-and-meta-analysis-of-sensitivity-specificity-and-diagnostic-accuracy
#3
James Toft, William J Hadden, Jerome M Laurence, Vincent Lam, Lawrence Yuen, Anna Janssen, Henry Pleass
BACKGROUND: Pancreatic cancer, primarily pancreatic ductal adenocarcinoma (PDAC), accounts for 2.4% of cancer diagnoses and 5.8% of cancer death annually. Early diagnoses can improve 5-year survival in PDAC. The aim of this systematic review was to determine the sensitivity, specificity and diagnostic accuracy values for MRI, CT, PET&PET/CT, EUS and transabdominal ultrasound (TAUS) in the diagnosis of PDAC. METHODS: A systematic review was undertaken to identify studies reporting sensitivity, specificity and/or diagnostic accuracy for the diagnosis of PDAC with MRI, CT, PET, EUS or TAUS...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28609114/do-incidental-hyperechoic-renal-lesions-measuring-up-to-1-cm-warrant-further-imaging-outcomes-of-161-lesions
#4
Ankur M Doshi, Abimbola Ayoola, Andrew B Rosenkrantz
OBJECTIVE: The purpose of this study was to determine the outcomes of hyperechoic renal lesions measuring 1 cm or less at ultrasound examination. MATERIALS AND METHODS: This retrospective study included 161 hyperechoic renal lesions measuring 1 cm or less at ultrasound that were evaluated with follow-up ultrasound, CT, or MRI. Follow-up imaging examinations were reviewed to assess for definitive lesion characterization or size stability. RESULTS: Follow-up included 11 unenhanced CT, 39 contrast-enhanced CT, 52 unenhanced and contrast-enhanced CT, two unenhanced MRI, 50 unenhanced and contrast-enhanced MRI, and 87 ultrasound examinations...
June 13, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28605060/modelling-the-benefits-and-harms-of-surveillance-for-hepatocellular-carcinoma-information-to-support-informed-choices
#5
Eleanor J Taylor, Rebecca L Jones, J Ashley Guthrie, Ian A Rowe
Surveillance by ultrasonography for hepatocellular carcinoma (HCC) for individuals with cirrhosis is recommended. There is debate regarding the effectiveness of surveillance in reducing mortality and there is little information on the harms available to patients considering surveillance. The aim of this study was to provide estimates of both the benefit and harms of surveillance. A Markov model was built to simulate outcomes of individuals entering surveillance. Following identification of a focal lesion by ultrasound surveillance further investigations were defined by the EASL-EORTC recall policy...
June 12, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28600647/hybrid-18-f-fdg-pet-mri-might-improve-locoregional-staging-of-breast-cancer-patients-prior-to-neoadjuvant-chemotherapy
#6
Briete Goorts, Stefan Vöö, Thiemo J A van Nijnatten, Loes F S Kooreman, Maaike de Boer, Kristien B M I Keymeulen, Romy Aarnoutse, Joachim E Wildberger, Felix M Mottaghy, Marc B I Lobbes, Marjolein L Smidt
PURPOSE: Our purpose in this study was to assess the added clinical value of hybrid (18)F-FDG-PET/MRI compared to conventional imaging for locoregional staging in breast cancer patients undergoing neoadjuvant chemotherapy (NAC). METHODS: In this prospective study, primary invasive cT2-4 N0 or cT1-4 N+ breast cancer patients undergoing NAC were included. A PET/MRI breast protocol was performed before treatment. MR images were evaluated by a breast radiologist, blinded for PET images...
June 10, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28599648/surgeons-knowledge-regarding-the-diagnosis-and-management-of-pancreatic-cancer-in-china-a-cross-sectional-study
#7
Bing-Qi Li, Li Wang, Jian Li, Li Zhou, Tai-Ping Zhang, Jun-Chao Guo, Yu-Pei Zhao
BACKGROUND: Pancreatic cancer is rare but highly malignant. Studies have shown that surgeons' knowledge closely links to the correct diagnosis and treatment outcomes of pancreatic cancer. The purpose of this study was to survey current surgeons' knowledge regarding pancreatic cancer. METHODS: A cross-sectional study was conducted among 705 surgeons who attended the 2011 China Surgical Week's meeting in Beijing. A questionnaire regarding the risk factors, clinical manifestations, diagnosis, and treatment of pancreatic cancer was used...
June 9, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28598835/efficacy-of-contrast-enhanced-ultrasound-for-immediate-assessment-of-ablation-status-after-intraoperative-radiofrequency-ablation-of-hepatic-malignancies
#8
N Platz Batista da Silva, L P Beyer, M C Hottenrott, C Hackl, H J Schlitt, C Stroszczynski, P Wiggermann, E M Jung
AIM: To evaluate the Efficacy of intraoperative contrast enhanced ultrasound (Io-CEUS) for assessment of radiofrequency ablation (RFA) during liver tumor surgery. MATERIAL AND METHODS: Retrospective analyis was performed on 18 patients who underwent combined liver tumor surgery and RFA of 27 hepatic tumors between 02/2011 and 12/2016. Io-CEUS was performed by bolus injections of up to 10 ml sulphur hexaflourid microbubbles for diagnostic purposes. To guide the RFA up to 20 ml microbubbles were applied to monitor the procedure and assess the ablation status finally...
June 3, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28597672/pancreas-burkitt-primary-lymphoma-in-pediatric-age
#9
Joao Araújo, Carlos Sampaio Macedo, Luciana Sousa
We present an the case of an eight-year-old Portuguese boy with no history of traveling, admitted with non-specific abdominal pain. An analytic study revealed high levels of lipase and amylase. Ultrasound, abdominal computerized tomography (CT), and an abdominal magnetic resonance imaging (MRI), were performed. The imaging findings are suggestive of a pancreatic tumor which is an extremely rare entity in children. A biopsy was performed by opened surgery and identified a Burkitt lymphoma.
June 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28597000/intraoperative-ultrasound-as-a-screening-modality-for-the-detection-of-liver-metastases-during-resection-of-primary-colorectal-cancer-a-systematic-review
#10
REVIEW
Signe Bremholm Ellebæk, Claus Wilki Fristrup, Michael Bau Mortensen
Colorectal cancer (CRC) is one of the most common cancer diseases worldwide. One in 4 patients with CRC will have a disseminated disease at the time of diagnosis and often in the form of synchronous liver metastases. Studies suggest that up to 30% of patients have non-recognized hepatic metastases during primary surgery for CRC. Intraoperative ultrasonography examination (IOUS) of the liver to detect liver metastases was considered the gold standard during open CRC surgery. Today laparoscopic surgery is the standard procedure, but laparoscopic ultrasound examination (LUS) is not performed routinely...
April 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28593144/schwannoma-of-the-femur-a-rare-case-report
#11
Fahad Al-Lhedan
Schwannoma is a benign tumor derived from Schwann cells that cover myelinated nerve fibers (1). Among primary bone tumors, intraosseous schwannoma accounts for less than 0.2% (2). We are reporting a rare case of an 18-year-old female presented with swelling in the posterior right thigh. The patient was asymptomatic and this was incidentally discovered by her massage therapist. However, the swelling was gradually growing since then. The plain radiograph findings were suggestive of a benign bone tumor. MRI with gadolinium was performed for further evaluation but it demonstrated suspicious features as evidenced by the extra osseous enhancing soft tissue component...
September 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28592361/ct-imaging-of-solid-renal-masses-pitfalls-and-solutions
#12
REVIEW
S Krishna, C A Murray, M D McInnes, R Chatelain, M Siddaiah, O Al-Dandan, S Narayanasamy, N Schieda
Computed tomography (CT) remains the first-line imaging test for the characterisation of renal masses; however, CT has inherent limitations, which if unrecognised, may result in errors. The purpose of this manuscript is to present 10 pitfalls in the CT evaluation of solid renal masses. Thin section non-contrast enhanced CT (NECT) is required to confirm the presence of macroscopic fat and diagnosis of angiomyolipoma (AML). Renal cell carcinoma (RCC) can mimic renal cysts at NECT when measuring <20 HU, but are usually heterogeneous with irregular margins...
June 4, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28585063/enabling-real-time-volume-rendering-of-functional-magnetic-resonance-imaging-on-an-ios-device
#13
Joseph Holub, Eliot Winer
Powerful non-invasive imaging technologies like computed tomography (CT), ultrasound, and magnetic resonance imaging (MRI) are used daily by medical professionals to diagnose and treat patients. While 2D slice viewers have long been the standard, many tools allowing 3D representations of digital medical data are now available. The newest imaging advancement, functional MRI (fMRI) technology, has changed medical imaging from viewing static to dynamic physiology (4D) over time, particularly to study brain activity...
June 5, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28578246/appendiceal-ganglioneuroma-in-neurofibromatosis-type-2
#14
Yonah B Esterson, Aryeh Y Esterson, Gregory M Grimaldi, John S Pellerito, Robin J Warshawsky
Here we report the case of a 30-year-old woman with a history of neurofibromatosis type 2 (NF2) who presented with an incidentally discovered pelvic mass on an ultrasound. The identity of the mass remained indeterminate following a CT and MRI, although appendiceal pathology was suspected. An elective laparoscopy and appendectomy were performed without complication and pathology on the specimen demonstrated an appendiceal ganglioneuroma. To our knowledge, there has been no prior documented case of an appendiceal ganglioneuroma in a patient with NF2...
May 27, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28577726/updates-in-hepatic-oncology-imaging
#15
REVIEW
Pallavi Pandey, Heather Lewis, Ankur Pandey, Carl Schmidt, Mary Dillhoff, Ihab R Kamel, Timothy M Pawlik
The utilization of advanced imaging modalities play an important role in the detection and differentiation of benign and malignant hepatic lesions. Imaging characteristics of hepatic tumors can sometimes be atypical, often leading to diagnostic challenges. Recent technical improvements in contrast enhanced ultrasound (CEUS), computed tomography (CT), and magnetic resonance imaging (MRI) have helped to better characterize hepatic lesions. For example, contrast agents used in US can now better delineate liver lesions, while the ability to reliably produce multiplanar and 3-D reconstructions through the use of MDCT provides an additional advantage in the context of therapeutic decision making for patients with hepatic lesions...
June 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28567318/hemolysis-elevated-liver-enzymes-and-low-platelets-severe-fetal-growth-restriction-postpartum-subarachnoid-hemorrhage-and-craniotomy-a-rare-case-report-and-systematic-review
#16
Shadi Rezai, Justin Faye, Alexander Hughes, Mon-Lai Cheung, Joel R Cohen, Judy A Kaia, Paul N Fuller, Cassandra E Henderson
Introduction. Hemolysis, elevated liver enzymes, and low platelets (HELLP) syndrome is a relatively uncommon but traumatic condition occurring in the later stage of pregnancy as a complication of severe preeclampsia or eclampsia. Prompt brain computed tomography (CT) or magnetic resonance imaging (MRI) and a multidisciplinary management approach are required to improve perinatal outcome. Case. A 37-year-old, Gravida 6, Para 1-0-4-1, Hispanic female with a history of chronic hypertension presented at 26 weeks and 6 days of gestational age...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28553196/diagnostic-imaging-of-hepatocellular-carcinoma-a-pictorial-essay
#17
Tomasz K Nowicki, Karolina Markiet, Edyta Szurowska
Hepatocellular carcinoma (HCC) is the most common primary liver cancer, which develops mostly in the setting of chronic liver disease. European Association for the Study of the Liver (EASL) and European Organization for Research and Treatment of Cancer (EORTC) prepared guidelines for screening, follow-up and diagnosis of HCC to facilitate decision making and optimize both diagnostic and therapeutic protocols. The review briefly describes etiology, epidemiology and histopathology of HCC and presents EASL-EORTC guidelines for surveillance and diagnosis of HCC...
May 2017: Current Medical Imaging Reviews
https://www.readbyqxmd.com/read/28550689/a-diagnostic-program-of-vascular-tumor-and-vascular-malformations-in-children-according-to-modern-classification
#18
Iryna Benzar
The aim of the study was to analyze the cohort of inpatient children with vascular anomalies according to the globally accepted classification introduced by the ISSVA. METHODS: The study included 205 inpatient children within the time period of the years 2010-2015. Types of vascular anomalies (VAs), age of patients, diagnostic procedures, and anatomical localization of VAs were analyzed. RESULTS: 65 patients of first year of life had vascular tumors, with prevalence of infantile hemangiomas (IHs) in 57 (87...
2017: Acta Medica (Hradec Králové)
https://www.readbyqxmd.com/read/28540794/preliminary-experience-with-direct-percutaneous-arterial-embolisation-combined-with-radiofrequency-ablation-for-hypervascular-hcc
#19
Wei Yang, Kun Yan, Min-Hua Chen, Jin-Yu Wu, Zhong-Yi Zhang, Jung-Chieh Lee, Song Wang, Wei Wu
OBJECTIVE: The purpose of this study was to evaluate the outcomes of a novel technique consisting of ultrasound-guided percutaneous arterial embolisation (PAE) of the tumour-feeding artery before radiofrequency ablation (RFA) for hypervascular hepatocellular carcinoma (HCC). METHODS: Twenty-three HCC patients with hypervascular tumours who were non-TACE candidates were enrolled in the study. The mean size of the tumours was 4.6 ± 1.2 cm (3.2-6.0 cm). PAE was performed using 20-gauge catheter needles under greyscale and colour ultrasound guidance...
April 5, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28537759/imaging-evaluation-of-nonacute-shoulder-pain
#20
Michael J Tuite, Kirstin M Small
OBJECTIVE: A variety of radiographic views have been described in the literature for the initial imaging of nonacute shoulder pain. Multiple articles have also discussed the best next imaging test if radiographs do not show the diagnosis, especially the use of unenhanced MRI, MR arthrography, CT arthrography, and ultrasound. The purpose of this article is to examine the evidence for the most helpful radiographic views and the best imaging test after radiographs for different clinical presentations of chronic shoulder pain...
May 24, 2017: AJR. American Journal of Roentgenology
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