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https://www.readbyqxmd.com/read/27933648/ecg-gated-pulmonary-artery-cta-for-evaluation-of-right-ventricular-function-in-patients-with-acute-pulmonary-embolism
#1
Hong-Wei Liang, De-Li Zhao, Xin-Ding Liu, Peng Chen, Hai-Ting Zhou, Cheng-Lei Zhao, Guo-Kun Wang, Mei-Ling Xu, Jin-Ling Zhang
OBJECTIVE: To evaluate right ventricular function in patients with acute pulmonary embolism (APE) using electrocardiogram-gated CTA and to discuss the clinical value of pulmonary artery CTA PATIENTS AND METHODS: Based on death risk evaluation, 86 APE patients were divided into high-risk group (n=46) and non-high-risk group (n=40). The CT pulmonary embolism (PE) index and parameters of right ventricular function were analyzed from the CTPA images and compared between the two groups. Potential correlation between the two was also discussed...
December 9, 2016: Echocardiography
https://www.readbyqxmd.com/read/27933480/alternatives-to-the-baseline-kub-for-ctkub-detected-calculi-evaluation-of-ct-scout-and-average-and-maximum-intensity-projection-images
#2
Hin-Boon Matthew Lew, James Han-Su Seow, Chandra Padmini Hewavitharana, Sally Burrows
PURPOSE: A CT of the kidneys, ureters, and bladder (CTKUB) is the investigation of choice in suspected renal colic. Plain kidney, ureter, and bladder radiographs (KUB) can be used to monitor the progress of a stone if radiographically visible on a baseline KUB. This study aims to determine if a low-dose CT Scout, thick-slab average intensity projection (AIP), or maximum intensity projection (MIP) images are suitable as substitutes for a baseline KUB. METHOD: A retrospective review of patients from a tertiary adult institute that had a positive CTKUB and a KUB within 4 h of the CT was performed...
December 8, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27933477/impact-of-low-energy-ct-imaging-on-selection-of-positive-oral-contrast-media-concentration
#3
Manuel Patino, Diana J Murcia, Andrea Prochowski Iamurri, Avinash R Kambadakone, Peter F Hahn, Dushyant V Sahani
OBJECTIVES: To determine to what extent low-energy CT imaging affects attenuation of gastrointestinal tract (GIT) opacified with positive oral contrast media (OCM). Second, to establish optimal OCM concentrations for low-energy diagnostic CT exams. METHODS: One hundred patients (38 men and 62 women; age 62 ± 11 years; BMI 26 ± 5) with positive OCM-enhanced 120-kVp single-energy CT (SECT), and follow-up 100-kVp acquisitions (group A; n = 50), or 40-70-keV reconstructions from rapid kV switching-single-source dual-energy CT (ssDECT) (group B; n = 50) were included...
December 8, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27933441/multimodality-imaging-to-assess-immediate-response-following-irreversible-electroporation-in-patients-with-malignant-hepatic-tumors
#4
Katsutoshi Sugimoto, Fuminori Moriyasu, Kazuhiro Saito, Yoshiyuki Kobayashi, Takao Itoi
PURPOSE: To assess the diagnostic accuracy of contrast-enhanced ultrasound (CEUS), contrast-enhanced multiphase CT (CECT), and gadoxetic acid-enhanced MRI (EOB-MRI) in identifying residual tumor in the subacute follow-up of patients with malignant hepatic tumors treated by irreversible electroporation (IRE). METHODS: We enrolled 16 patients with 21 hepatic lesions treated by IRE and examined by CEUS and CECT at 1 day after IRE and by EOB-MRI at 7 days after IRE...
December 8, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27933409/imaging-trends-in-suspected-appendicitis-a-canadian-perspective
#5
Victoria F Tan, Michael N Patlas, Douglas S Katz
PURPOSE: The purpose of our study was to assess trends in the imaging of suspected appendicitis in adult patients in emergency departments of academic centers in Canada. METHODS: A questionnaire was sent to all 17 academic centers in Canada to be completed by a radiologist who works in emergency radiology. The questionnaires were sent and collected over a period of 4 months from October 2015 to February 2016. RESULTS: Sixteen centers (94%) responded to the questionnaire...
December 8, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27933282/myocardial-perfusion-scintigraphy-dosimetry-optimal-use-of-spect-and-spect-ct-technologies-in-stress-first-imaging-protocol
#6
REVIEW
M Lecchi, S Malaspina, C Scabbio, V Gaudieri, A Del Sole
PURPOSE: Over the past decade, nuclear medicine experts have been seeking to minimize patient exposure to radiation in myocardial perfusion scintigraphy (MPS). This review describes the latest technological innovations in MPS, particularly with regard to dose reduction. METHODS: We searched in PubMed for original clinical papers in English, published after 2008, using the following research criteria: (dose) and ((reduction) or (reducing)) and ((myocardial) or (cardiac) or (heart)) and ((nuclear medicine) or (nuclear imaging) or (radionuclide) or (scintigraphy) or (SPET) or (SPECT))...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27933280/bone-imaging-in-prostate-cancer-the-evolving-roles-of-nuclear-medicine-and-radiology
#7
REVIEW
Gary J R Cook, Gurdip Azad, Anwar R Padhani
The bone scan continues to be recommended for both the staging and therapy response assessment of skeletal metastases from prostate cancer. However, it is widely recognised that bone scans have limited sensitivity for disease detection and is both insensitive and non-specific for determining treatment response, at an early enough time point to be clinically useful. We, therefore, review the evolving roles of nuclear medicine and radiology for this application. We have reviewed the published literature reporting recent developments in imaging bone metastases in prostate cancer, and provide a balanced synopsis of the state of the art...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27932926/a-dataset-of-fishes-in-and-around-inle-lake-an-ancient-lake-of-myanmar-with-dna-barcoding-photo-images-and-ct-3d-models
#8
Yuichi Kano, Prachya Musikasinthorn, Akihisa Iwata, Sein Tun, Lkc Yun, Seint Seint Win, Shoko Matsui, Ryoichi Tabata, Takeshi Yamasaki, Katsutoshi Watanabe
BACKGROUND: Inle (Inlay) Lake, an ancient lake of Southeast Asia, is located at the eastern part of Myanmar, surrounded by the Shan Mountains. Detailed information on fish fauna in and around the lake has long been unknown, although its outstanding endemism was reported a century ago. NEW INFORMATION: Based on the fish specimens collected from markets, rivers, swamps, ponds and ditches around Inle Lake as well as from the lake itself from 2014 to 2016, we recorded a total of 948 occurrence data (2120 individuals), belonging to 10 orders, 19 families, 39 genera and 49 species...
2016: Biodiversity Data Journal
https://www.readbyqxmd.com/read/27932861/interactive-navigation-guided-ophthalmic-plastic-surgery-assessment-of-optical-versus-electromagnetic-modes-and-role-of-dynamic-reference-frame-location-using-navigation-enabled-human-skulls
#9
Mohammad Javed Ali, Milind N Naik, Chetan Mallikarjuniah Girish, Mohammad Hasnat Ali, Swathi Kaliki, Tarjani Vivek Dave, Gautam Dendukuri
AIM: The aim of this study was to assess the anatomical accuracy of navigation technology in localizing defined anatomic landmarks within the orbit with respect to type of technology (optical versus electromagnetic systems) and position of the dynamic reference marker on the skull (vertex, temporal, parietal, and mastoid) using in vitro navigation-enabled human skulls. The role of this model as a possible learning tool for anatomicoradiological correlations was also assessed. METHODS: Computed tomography (CT) scans were performed on three cadaveric human skulls using the standard image-guidance acquisition protocols...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27932752/-the-usefulness-of-considering-preoperative-ct-images-for-surgical-clipping-in-a-patient-with-a-distal-aca-ruptured-aneurysm
#10
Satoshi Takahashi, Dai Kamamoto, Eriko Ishihara, Kazunari Yoshida
No abstract text is available yet for this article.
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27932558/petct-imaging-of-unstable-carotid-plaque-with-ga-68-labelled-somatostatin-receptor-ligand
#11
Ming Young Simon Wan, Raymond Endozo, Sofia Michopoulou, Robert Shortman, Manuel Rodriguez-Justo, Leon Menezes, Syed Yusuf, Toby Richards, Damian Wild, Beatrice Waser, Jean Claude Reubi, Ashley Groves
BACKGROUND: Ga68 labelled somatostatin receptor ligand PET imaging has recently been shown in preclinical and early human studies to have a potential role in the evaluation of vulnerable arterial plaques. We prospectively evaluated carotid plaque Ga68-DOTATATE uptake in patients with recent carotid events, assessed inter- and intra- observer variability of such measurements, and explored the mechanism of any plaque DOTATATE activity with immunohistochemistry in resected specimens. MATERIALS & METHODS: 20 consecutively consenting patients with recent symptomatic carotid events (transient ischaemic attack [TIA], stroke or amaurosis fugax), due for carotid endarterectomy were prospectively recruited...
December 8, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27932557/quantitative-parameters-in-psma-targeted-pet-imaging-with-18f-dcfpyl-variability-in-normal-organ-uptake
#12
Xin Li, Steven P Rowe, Jeffrey P Leal, Michael A Gorin, Mohamad E Allaf, Ashley E Ross, Kenneth J Pienta, Martin A Lodge, Martin G Pomper
PURPOSE: (18)F-DCFPyL is a small-molecule inhibitor of the prostate-specific membrane antigen (PSMA) that has shown promise for evaluation of primary and metastatic prostate cancer (PC) using positron emission tomography (PET). Measuring the variability in normal organ uptake of (18)F-DCFPyL is necessary to understand its biodistribution, aid image interpretation, judge the reliability of scan quantification, and to provide a basis for therapeutic monitoring. METHODS: 65 consecutive (18)F-DCFPyL PET/CT scans from 64 patients with a history of PC were analyzed...
December 8, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27932438/squamous-cell-carcinoma-of-the-extrahepatic-bile-duct-with-metachronous-para-aortic-lymph-node-metastasis-successfully-treated-with-s-1-plus-cisplatin
#13
Ryohei Nishiguchi, Dal Ho Kim, Masayuki Honda, Tsuguo Sakamoto
The most common histological classification of bile duct cancer is adenocarcinoma and squamous cell carcinoma (SCC) is relatively rare. We report a case of a 78-year-old man with SCC of the extrahepatic bile duct associated with metachronous para-aortic lymph node metastasis. He had undergone subtotal stomach-preserving pancreatoduodenectomy. The pathological findings demonstrated moderately differentiated SCC of the distal extrahepatic bile duct (T1N1M0, stage IIB). 6 months after surgery, recurrence of the para-aortic lymph node was shown in abdominal CT...
December 8, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27932290/the-diagnosis-of-idiopathic-pulmonary-fibrosis-current-and-future-approaches
#14
REVIEW
Fernando J Martinez, Alison Chisholm, Harold R Collard, Kevin R Flaherty, Jeffrey Myers, Ganesh Raghu, Simon L F Walsh, Eric S White, Luca Richeldi
With the recent development of two effective treatments for patients with idiopathic pulmonary fibrosis, an accurate diagnosis is crucial. The traditional approach to diagnosis emphasises the importance of thorough clinical and laboratory evaluations to exclude secondary causes of disease. High-resolution CT is a critical initial diagnostic test and acts as a tool to identify patients who should undergo surgical lung biopsy to secure a definitive histological diagnosis of usual interstitial pneumonia pattern...
December 5, 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27931962/imaging-of-vasculitis-state-of-the-art
#15
REVIEW
Francesco Muratore, Nicolò Pipitone, Carlo Salvarani, Wolfgang A Schmidt
The increasing availability and improvement of imaging techniques are making a profound impact in the evaluation and management of patients with vasculitis, particularly for those with large vessel vasculitis, and will most likely play an ever more important role in the future. Deep, large vessels can be examined by CT or MRI, while ultrasound is the method of choice for the evaluation of superficial vessels (such as temporal, carotid, and axillary arteries). PET is very sensitive in detecting large vessel inflammation, but it does not delineate the vessel wall...
August 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27931960/imaging-of-osteoarthritis-oa-what-is-new
#16
REVIEW
Alexander Mathiessen, Marco Amedeo Cimmino, Hilde Berner Hammer, Ida Kristin Haugen, Annamaria Iagnocco, Philip G Conaghan
In daily clinical practice, conventional radiography is still the most applied imaging technique to supplement clinical examination of patients with suspected osteoarthritis (OA); it may not always be needed for diagnosis. Modern imaging modalities can visualize multiple aspects of the joint, and depending on the diagnostic need, radiography may no longer be the modality of choice. Magnetic resonance imaging (MRI) provides a complete assessment of the joint and has a pivotal role in OA research. Computed tomography (CT) and nuclear medicine offer alternatives in research scenarios, while ultrasound can visualize bony and soft-tissue pathologies and is highly feasible in the clinic...
August 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27931956/diagnosis-and-management-of-rheumatoid-arthritis-what-is-the-current-role-of-established-and-new-imaging-techniques-in-clinical-practice
#17
REVIEW
Maria Antonietta D'Agostino, Espen A Haavardsholm, Conny J van der Laken
Ultrasound and magnetic resonance imaging (MRI) have become established imaging techniques for the management of rheumatoid arthritis. Several publications have pointed out the advantages of these techniques for a more complete evaluation of the inflammation and structural damage at joint level. Recently new imaging techniques as the positron emission tomography (PET) associated with computed tomography (CT) or MRI scan, and the optical imaging have been introduced in the panorama. This article presents the advantages and limitations of each imaging techniques in light with the recent publications...
August 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27931948/nonmissile-penetrating-head-injuries-nphis-surgical-management-and-review-of-the-literature
#18
Xi-Sheng Li, Jun Yan, Chang Liu, Yu Luo, Xing-Sheng Liao, Liang Yu, Shao-Wen Xiao
BACKGROUND: Nonmissile penetrating head injuries (NPHIs) in the civilian population are rare but with potentially fatal features. While numerous cases have been reported in the literature, the surgical management of such injuries is still ambiguous, especially with surgical techniques updating. Here we will illustrate 5 cases of NPHIs managed with different surgical techniques and review the literature on surgical treatment of these injuries to outline the appropriate management for these patients from neurosurgical perspective...
December 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27930527/feasibility-of-radiofrequency-ablation-as-an-alternative-to-surgical-intervention-in-patients-with-huge-multiloculated-pyogenic-liver-abscesses-a-retrospective-cohort-study
#19
Shan Ke, Xue-Mei Ding, Jun Gao, Shao-Hong Wang, Jian Kong, Li Xu, Wen-Bing Sun
This retrospective cohort study investigated the feasibility of radiofrequency (RF) ablation as an alternative to surgical intervention in patients with huge multiloculated pyogenic liver abscesses (PLAs).From August 2010 to April 2016, 83 patients with PLA were admitted to Beijing Chao-Yang Hospital, China. Four of these patients had huge multiloculated PLAs and underwent RF ablation plus antibiotics. The inclusion criteria for RF ablation were as follows: multiloculated PLA confirmed by computed tomography (CT) or magnetic resonance imaging (MRI), widest diameter of the PLA ≥5 cm, failure to respond to or not suitable to treatment with percutaneous drainage (PD), and patient refusal of surgery...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929662/insulinoma-detection-with-mdct-is-there-a-role-for-whole-pancreas-perfusion
#20
Liang Zhu, Huadan Xue, Hao Sun, Xuan Wang, Wenming Wu, Zhengyu Jin, Yupei Zhao
OBJECTIVE: The purpose of this study is to investigate the role of whole-pancreas perfusion in detecting insulinomas with the use of MDCT. MATERIALS AND METHODS: From January 2011 to December 2011, a total of 70 consecutive patients (33 men and 37 women; mean age, 46 years; range, 17-73 years) who underwent biphasic contrast-enhanced CT and whole-pancreas CT perfusion for suspected insulinomas were identified retrospectively. Patients were monitored for at least 3 years...
December 8, 2016: AJR. American Journal of Roentgenology
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