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https://www.readbyqxmd.com/read/28730151/comparison-of-thoracic-radiography-and-computed-tomography-in-calves-with-naturally-occurring-respiratory-disease
#1
Jennifer Fowler, Susanne M Stieger-Vanegas, Jorge A Vanegas, Gerd Bobe, Keith P Poulsen
OBJECTIVE: To evaluate the severity and extent of lung disease using thoracic computed radiography (CR) compared to contrast-enhanced multi-detector computed tomography (MDCT) of the thorax in calves with naturally occurring respiratory disease and to evaluate the feasibility and safety of performing contrast-enhanced thoracic multi-detector MDCT examinations in sedated calves. Furthermore, to evaluate if combining CR or MDCT with respiratory scoring factors will improve prediction of the chronicity of pulmonary disease in calves...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28726507/qualitative-and-quantitative-assessment-of-abdominal-and-pelvic-ct-image-quality-using-iopromide-with-different-concentrations-of-iodine-300-and-370-mg-i-ml
#2
Weixia Chen, Zhenlin Li, Tao Shuai, Lingling Qian, Liping Deng, Kai Liao, Kai Zhang, Bangsheng Jia, Bin Song
OBJECTIVE: The purpose of this study was to analyze the quality of MDCT images obtained using iopromide with two different concentrations of iodine (300 and 370 mg I/mL) in daily clinical settings. SUBJECTS AND METHODS: Patients from 38 hospitals in China undergoing abdominal or pelvic CT with iopromide were prospectively recruited. MDCT was performed using iopromide with an iodine concentration of 300 or 370 mg I/mL. CT quality image was graded as excellent, good, adequate, and poor...
July 20, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28726321/the-prevalence-of-transpancreatic-common-hepatic-artery-and-coexisting-variant-anatomy
#3
Kousei Ishigami, Akihiro Nishie, Yoshiki Asayama, Yasuhiro Ushijima, Yukihisa Takayama, Daisuke Okamoto, Nobuhiro Fujita, Tomoharu Yoshizumi, Norifumi Harimoto, Takao Ohtsuka, Kohei Nakata, Hiroshi Honda
PURPOSE: We studied the prevalence of the transpancreatic common hepatic artery (tp-CHA) and coexisting variant anatomy. MATERIALS AND METHODS: The study group comprised 788 consecutive liver transplant donor candidates who had undergone thin-section multidetector-row computed tomography (MDCT) studies to investigate vascular anatomy. Multiplanar reformatted (MPR) images obtained from the arterial phase were retrospectively reviewed to assess the presence/absence of the tp-CHA...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28725325/left-atrial-appendage-volume-and-plasma-docosahexaenoic-acid-levels-are-associated-with-atrial-fibrillation-recurrence-after-catheter-ablation
#4
Tomoyuki Shiozawa, Kazunori Shimada, Gaku Sekita, Hidemori Hayashi, Haruna Tabuchi, Seiji Miura, Shinichiro Fujimoto, Tomoyasu Kadoguchi, Shohei Ouchi, Tatsuro Aikawa, Hamad Al Shahi, Shuhei Takahashi, Tetsuro Miyazaki, Masataka Sumiyoshi, Yuji Nakazato, Hiroyuki Daida
BACKGROUND: Risk factors for atrial fibrillation (AF) recurrence in patients who have undergone AF catheter ablation have not been fully clarified. The objective of this study was to assess whether the left atrium (LA) and LA appendage (LAA) volumes, and cardio-metabolic markers such as polyunsaturated fatty acids (PUFAs) levels were associated with AF recurrence. METHODS: Seventy-seven consecutive patients with AF (mean age, 59 ± 8 years; male, 81%; paroxysmal AF, 64%) undergoing catheter ablation were enrolled...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28722306/is-intra-procedure-three-dimensional-transesophageal-echocardiogram-an-alternative-to-preprocedure-multidetector-computed-tomography-for-the-measurement-of-the-aortic-annulus-in-patients-undergoing-transcatheter-aortic-valve-replacement
#5
Abdul Moiz Hafiz, Giorgio A Medranda, Nikolaos Kakouros, Jay Patel, Jonathan Kahan, George Gubernikoff, Beevash Ray, Vijayapraveena Paruchuri, Joshua DeLeon, Kevin Marzo, Rose Calixte, Juan Gaztanaga
BACKGROUND: The role of three-dimensional transesophageal echocardiography (3DTEE) vs multidetector computed tomography (MDCT) in aortic annular sizing has been poorly defined in patients undergoing transcatheter aortic valve replacements (TAVR). We set to determine the correlation between 3DTEE and MDCT in measuring the aortic annulus prior to TAVR. METHODS: In an observational, retrospective study, we compared aortic annular areas measured by MDCT and 3DTEE in TAVR patients...
July 18, 2017: Echocardiography
https://www.readbyqxmd.com/read/28722134/location-variations-and-predictors-of-epicardial-fat-mapping-using-multi-detector-computed-tomography-to-assist-epicardial-ventricular-tachycardia-ablation
#6
Mariaileen Sourwine, Jean Jeudy, Brian Miller, Rama Vunnam, Hasan Imanli, Olurotimi Mesubi, Martine Etienne-Mesubi, Vincent See, Stephen Shorofsky, Timm Dickfeld
BACKGROUND: A significant number of ventricular tachycardia circuits are located close to the epicardial surface and are amendable to epicardial ablation. Epicardial fat often interferes with substrate mapping and ablation, though little is known regarding the distribution of fat and its fluctuation with the cardiac cycle. METHODS: We studied 40 patients who underwent a 64-slice MDCT in order to describe patterns of epicardial fat distribution, variation during cardiac cycle and clinical predictors of epicardial fat...
July 19, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28716553/regional-analysis-of-age-related-local-bone-loss-in-the-spine-of-a-healthy-population-using-3d-voxel-based-modeling
#7
Alexander Valentinitsch, Stefano Trebeschi, Eva Alarcón, Thomas Baum, Johannes Kaesmacher, Claus Zimmer, Cristian Lorenz, Jan S Kirschke
Local variations in bone loss may be of great importance to individually predict osteoporotic fractures but are neglected by current densitometry techniques. The purpose of this study was to evaluate regional variations of normal bone loss at the spine among different age groups using voxel-based morphometry. Non-contrast MDCT scans of 16 patients under the age of 40 (mean age 26years) without spinal pathology were identified as a reference cohort, where each thoracolumbar vertebra was assessed individually...
July 14, 2017: Bone
https://www.readbyqxmd.com/read/28713511/accuracy-of-densitometry-of-two-cone-beam-computed-tomography-equipment-in-comparison-with-computed-tomography
#8
Sina Haghanifar, Sajad Yousefi, Ehsan Moudi, Farida Abesi, Ali Bijani, Ali Akbar Moghadamnia, Mehrdad Nabahati
BACKGROUND: The use of oral implants has been growing, and cone beam computerized tomography (CBCT) has become the method of choice for oral and maxillofacial radiology. OBJECTIVE: To assess the accuracy of bone densitometry in two different CBCT devices in comparison with MDCT (multi-detector CT). METHODS: Different concentrations of urografin, including 2.5%, 5%, 7.5%, 10%, 12.5%, were prepared, and the Hounsfield unit of these solution was measured by two CBCT devices (SORDEX CRANEX 3D and NEWTOM 5G) and one spiral CT device (SOMATOM SENSATION)...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28710577/detection-of-small-bowel-tumours-with-ct-enteroclysis-using-carbon-dioxide-and-virtual-enteroscopy-a-preliminary-study
#9
Anthony Dohan, Mourad Boudiaf, Xavier Dray, Elia Samaha, Christophe Cellier, Marine Camus, Clarisse Eveno, Raphael Dautry, Philippe Soyer
PURPOSE: The aim of this prospective study was to evaluate the feasibility, tolerance and performance of virtual enteroscopy (VE) using carbon dioxide for small-bowel distension in patients with suspected small-bowel tumours (SBTs). PATIENTS AND METHODS: After IRB approval, 17 patients with suspected SBTs were prospectively included. Radiation dose was compared to 34 matched patients (2 for 1) for age, gender and body weight, who had undergone CT-enteroclysis with neutral contrast (CTE)...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28708722/asymptomatic-bartholin-cyst-evaluation-with-multidetector-row-computed-tomography
#10
Christopher Silman, Shunro Matsumoto, Ryo Takaji, Akira Matsumoto, Ayumi Otsuka, Hiromu Mori, Yoshihiro Nishida, Hisashi Narahara, Tadasuke Ando, Hidetoshi Miyake
OBJECTIVE: The aim of this study was to determine the frequency, morphology, and attenuation characteristics of Bartholin cysts on multidetector computed tomography (MDCT) in asymptomatic women. METHODS: A total of 3280 consecutive MDCT examinations were assessed for Bartholin cysts. The diagnosis was based on shape, contrast enhancement, and anatomical location. Age, laterality, size, and attenuation patterns were recorded. Scans from patients with paravaginal-related symptoms were excluded, and any available follow-up MDCT scans or magnetic resonance images were evaluated...
July 13, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28705329/relationship-between-cone-beam-ct-technique-and-diagnostic-usefulness-in-patients-undergoing-embolotherapy-for-hepatocellular-carcinoma
#11
D Gutierrez, R Kishore Gurajala, B Kapoor, R Setser, K Karuppasamy
AIM: To determine the effect of different numbers of projection images in C-arm cone-beam computed tomography (CBCT) on diagnostic content and image quality in patients undergoing angiographic embolotherapy for hepatocellular carcinoma (HCC). MATERIALS AND METHODS: A total of 29 patients who underwent contrast-enhanced conventional multidetector CT (MDCT) within 6 weeks prior to CBCT acquired during embolotherapy for HCC between 2010 and 2013 were included in the study...
July 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28687712/dynamic-edematous-response-of-the-human-heart-to-myocardial-infarction-implications-for-assessing-myocardial-area-at-risk-and-salvage
#12
Rodrigo Fernández-Jiménez, Manuel Barreiro-Pérez, Ana Martin-García, Javier Sánchez-González, Jaume Agüero, Carlos Galán-Arriola, Jaime García-Prieto, Elena Díaz-Pelaez, Pedro Vara, Irene Martinez, Ivan Zamarro, Beatriz Garde, Javier Sanz, Valentin Fuster, Pedro L Sánchez, Borja Ibanez
Background -Clinical protocols aimed to characterize the post-myocardial infarction (MI) heart by cardiac magnetic resonance (CMR) need to be standardized to take account of dynamic biological phenomena evolving early after the index ischemic event. Here we evaluated the time-course of edema reaction in ST-segment elevation MI (STEMI) patients by CMR and assessed its implications for myocardium-at-risk (MaR) quantification both in patients and in a large animal model. Methods -A total of 16 anterior STEMI patients successfully treated by primary angioplasty and 16 matched controls were prospectively recruited...
July 7, 2017: Circulation
https://www.readbyqxmd.com/read/28687287/impact-of-ct-parameters-on-the-physical-quantities-related-to-image-quality-for-two-mdct-scanners-using-the-acr-accreditation-phantom-a-phantom-study
#13
B Alikhani, L Jamali, H-J Raatschen, F Wacker, T Werncke
INTRODUCTION: To evaluate the image quality provided by MDCT scanners using an ACR phantom an to find out the relationship between CT parameters and physical quantities related to image quality. METHODS: A GE Lightspeed VCT and a GE Lightspeed Pro 16 are used. The ACR phantom consists of four modules for evaluating physical parameters. The image quality parameters, such as CT number, linearity, CNR, image uniformity, SNR and at least spatial resolution using MTF, by different sets of image acquisition protocols (IAPs) are characterized...
August 2017: Radiography
https://www.readbyqxmd.com/read/28684043/correlates-of-pericardial-adipose-tissue-volume-using-multidetector-ct-scanning-in-cardiac-patients-in-china
#14
Ting Ting Yang, Anne F Fish, Wei Min Kong, Xin Gao, De Jian Huang, Ji Tao Feng, Jun Ya Zhu, Tao Chen, Qing Qing Lou
BACKGROUND: Pericardial adipose tissue (PAT) is an emerging cardiovascular risk factor, yet much less is understood about PAT volume in Chinese adults, especially in relation to physical activity. The study explores associations between demographic and clinical variables and PAT volume, using multidetector computed tomography (MDCT) scanning in China. We also examined the relationship between PAT volume and coronary artery disease (CAD). METHODS: An observational, correlational study design was used...
June 30, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28677059/improving-ct-detection-sensitivity-for-nodal-metastases-in-oesophageal-cancer-with-combination-of-smaller-size-and-lymph-node-axial-ratio
#15
Jianfang Liu, Zhu Wang, Huafei Shao, Dong Qu, Jian Liu, Libo Yao
OBJECTIVES: To investigate the value of CT with inclusion of smaller lymph node (LN) sizes and axial ratio to improve the sensitivity in diagnosis of regional lymph node metastases in oesophageal squamous cell carcinoma (OSCC). METHODS: The contrast-enhanced multidetector row spiral CT (MDCT) multiplanar reconstruction images of 204 patients with OSCC were retrospectively analysed. The long-axis and short-axis diameters of the regional LNs were measured and axial ratios were calculated (short-axis/long-axis diameters)...
July 4, 2017: European Radiology
https://www.readbyqxmd.com/read/28675629/long-term-follow-up-after-left-atrial-appendage-occlusion-with-comparison-of-transesophageal-echocardiography-vs-computed-tomography-to-guide-medical-therapy-and-data-about-post-closure-cardioversion
#16
Benjamin Berte, Christine Attenhofer Jost, Dominik Maurer, Anja Fäh-Gunz, Xavier Pillois, Barbara Naegeli, Monica Pfyffer, Gabor Sütsch, Christoph Scharf
AIMS: The use of left atrial appendage (LAA)-occluders in atrial fibrillation is increasing. There are few data on the comparison between transesophageal echocardiography (TEE) and computed tomography (MDCT) assessing peridevice-flow and outcome of electrical cardioversion (ECV) in these patients. METHODS AND RESULTS: Single-center prospective registry from 2009 to 2015 including all LAA-occluders to analyze success and complications during implantation and follow-up...
July 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28674910/diagnostic-imaging-in-pediatric-thoracic-trauma
#17
Claudia Lucia Piccolo, Stefania Ianniello, Margherita Trinci, Michele Galluzzo, Michele Tonerini, Massimo Zeccolini, Giuseppe Guglielmi, Vittorio Miele
Thoracic trauma accounts for approximately 14% of blunt force traumatic deaths, second only to head injuries. Chest trauma can be blunt (90% of cases) or penetrating. In young patients, between 60 and 80% of chest injuries result from blunt trauma, with over half as a consequence of impact with motor vehicles, whereas in adolescents and adults, penetrating trauma has a statistically more prominent role. Pulmonary contusions and rib fractures are the most frequent injuries occurring. Chest X-ray is the first imaging modality of choice to identify patients presenting with life-threatening conditions (i...
July 4, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28671860/a-giant-left-atrial-diverticulum-diagnosed-by-transesophageal-echocardiogram-and-multidetector-computed-tomography-a-case-report-and-brief-review-of-the-literature
#18
Qiang Chen, Hua Cao, Gui-Can Zhang, Xin-Ming Huang
Giant left atrial diverticulum is a rare congenital malformation that is most commonly diagnosed in incidental finding. Here, we reported a case of a 1-year-old asymptomatic child with a giant left atrial diverticulum. Diagnosis was established by transthoracic echocardiography (TTE), and confirmed by multidetector computed tomography (MDCT) and transesophageal echocardiography (TEE). We excised the diverticulum and sewed its base under cardiopulmonary bypass and cardiac arrest.  The patient had a good postoperative result...
June 7, 2017: Heart Surgery Forum
https://www.readbyqxmd.com/read/28658869/role-of-multi-detector-computed-tomography-mdct-in-preoperative-staging-of-pancreatic-carcinoma
#19
Soumil Singhal, Nirmal Kumar Prabhu, Pulkit Sethi, Srikanth Moorthy
INTRODUCTION: Pancreatic carcinoma is one of the leading causes of cancer related death in advanced countries and has shown rising trends in developing countries like India. Increase in the incidence has been linked to risk factors like lifestyle modification associated with increased alcohol consumption and rapid urbanization. Most patients at the time of diagnosis present with an advanced condition. Surgical resection offers the only chance for cure in them and imaging plays a crucial role in the early diagnosis of the condition...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28655404/the-cluster-of-black-pearls-sign-of-sarcoid-lymphadenopathy-a-new-sign-on-thin-section-contrast-enhanced-multidetector-ct
#20
R Venkata Ramanan, A Pudhiavan, A Venkataramanan
AIM: To identify a specific diagnostic sign for sarcoid adenopathy on contrast-enhanced multidetector computed tomography (MDCT) based on nodal morphology. MATERIALS AND METHODS: A prospective study was performed on 105 patients with 1654 nodes. Of this, 18 patients with sarcoidosis formed the study group. The control group consisted of the remaining 87 patients with other proven disease entities of metastatic adenocarcinoma, lymphoma, tuberculosis, and reactive adenopathy for comparison...
June 24, 2017: Clinical Radiology
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