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MDCT angiography

Toshihiro Shoji, Sho Okada, Yuji Ohno, Atsushi Nakagomi, Yoshihide Fujimoto, Yosihio Kobayashi
OBJECTIVE: Pulse wave velocity is a non-invasive method that is useful not only for estimating arterial stiffness but also screening cardiovascular events in the general population. Upstroke time (UT) and % mean artery pressure (% MAP) are novel, adjunctive indices for arterial stiffness that are derived from morphology analysis of the pulse wave during brachial-ankle pulse wave velocity (baPWV) measurement. Several studies have shown the association between UT and coronary artery calcification score as assessed by multi-detector computed tomography (MDCT)...
September 2016: Journal of Hypertension
Fang Huang, Qiang Chen, Qing-Quan Lai, Wen-Han Huang, Hong Wu, Wei-Cheng Li
The purpose of this study was to preoperatively evaluate the value of aortic arch lesions by multidetector computed tomography (MDCT) angiography in type A aortic dissection (AD).From January 2013 to December 2015, we enrolled 42 patients with type A AD who underwent MDCT angiography in our hospital. The institutional database of patients was retrospectively reviewed to identify MDCT angiography examinations for type A AD. Surgical corrections were conducted in all patients to confirm diagnostic accuracy.In this study, the diagnostic accuracy of MDCT angiography was 100% in all 42 patients...
September 2016: Medicine (Baltimore)
Toshihiro Shoji, Sho Okada, Yuji Ohno, Atsushi Nakagomi, Yoshihide Fujimoto, Yosihio Kobayashi
OBJECTIVE: Pulse wave velocity is a non-invasive method that is useful not only for estimating arterial stiffness but also screening cardiovascular events in the general population. Upstroke time (UT) and % mean artery pressure (% MAP) are novel, adjunctive indices for arterial stiffness that are derived from morphology analysis of the pulse wave during brachial-ankle pulse wave velocity (baPWV) measurement. Several studies have shown the association between UT and coronary artery calcification score as assessed by multi-detector computed tomography (MDCT)...
September 2016: Journal of Hypertension
Piero Boraschi, Francescamaria Donati, Massimiliano Rossi, Davide Ghinolfi, Franco Filipponi, Fabio Falaschi
PURPOSE: This study aims to assess the role of multidetector computed tomography (MDCT) for detecting early abdominal complications after orthotopic liver transplantation. MATERIALS AND METHODS: We retrospectively enrolled 170 subjects with clinical laboratory and/or echo-color Doppler abnormalities who underwent MDCT within the first 90 days after transplantation. All images were reviewed by two radiologists in conference and imaging results were correlated with digital subtraction angiography, conventional cholangiography, surgery, clinical laboratory, and/or imaging follow-up...
August 26, 2016: Clinical Imaging
Hakan Demirtaş, Tuna Parpar, Bumin Değirmenci, Mustafa Kara, Ahmet Orhan Çelik, Ayşe Umul, Mustafa Kayan, Ömer Yılmaz
PURPOSE: This study aimed to investigate the feasibility and diagnostic power of unenhanced 3D turbo spin echo MR angiography sequence (a technique based on subtraction of corresponding images acquired in diastole and systole, Syngo Native Space-Siemens healthcare) to identify peripheral artery disease (PAD). MATERIALS AND METHODS: Thirty patients (619 arterial segments in total) suspected with PAD and who were assessed with lower extremity MDCT angiography were examined starting from the level of aortic bifurcation for both lower extremities by 3D native space MR angiography...
August 29, 2016: La Radiologia Medica
Jun Deng, Xiongbing Lu, Ying Liu
Ectopic insertion of the ureter in the genitourinary tract is a rare congenital disorder, usually associated with ureteral duplication. Identification of the insertion open is critical for ureteric re-implantation. However, the challenge in the diagnosis of ectopic insertion of the ureter usually is to identify its insertion, particularly when the affected ureter is not dilated. Multi-detector computed tomography (MDCT) urography with nonionic iodinated contrast media delineates the ureteric course in the normal functioning kidney in the excretory phase [1]...
October 6, 2016: Journal of X-ray Science and Technology
Agata Arazińska, Michał Polguj, Andrzej Wojciechowski, Łukasz Trębiński, Ludomir Stefańczyk
PURPOSE: Median arcuate ligament syndrome (MALS) is a pathologic entity that can affect the celiac axis. Due to the extensive collateral network of mesenteric circulation, stenosis of one mesenteric artery does not lead to significant symptoms. The purpose of this study was to describe multidetector computed tomography (MDCT) angiography findings of celiac artery entrapment by the median arcuate ligament and determine those patients with high risks of ischemic complications. MATERIALS AND METHODS: From January 2012 to March 2016, 103 patients with celiac artery (CA) compression by median arcuate ligament were detected...
August 25, 2016: Clinical Anatomy
Martina Chantal de Knegt, A Fuchs, P Weeke, R Møgelvang, C Hassager, K F Kofoed
Current echocardiographic assessments of coronary vascular territories use the 17-segment model and are based on general assumptions of coronary vascular distribution. Fusion of 3D echocardiography (3DE) with multidetector computed tomography (MDCT) derived coronary anatomy may provide a more accurate assessment of left ventricular (LV) territorial function. We aimed to test the feasibility of MDCT and 3DE fusion and to compare territorial longitudinal strain (LS) using the 17-segment model and a MDCT-guided vascular model...
August 18, 2016: International Journal of Cardiovascular Imaging
Tomoaki Hirose, Tsuyoshi Igami, Kusuto Koga, Yuichiro Hayashi, Tomoki Ebata, Yukihiro Yokoyama, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Kensaku Mori, Masato Nagino
PURPOSE: Fusion angiography using reconstructed multidetector-row computed tomography (MDCT) images, and cholangiography using reconstructed images from MDCT with a cholangiographic agent include an anatomical gap due to the different periods of MDCT scanning. To conquer such gaps, we attempted to develop a cholangiography procedure that automatically reconstructs a cholangiogram from portal-phase MDCT images. METHODS: The automatically produced cholangiography procedure utilized an original software program that was developed by the Graduate School of Information Science, Nagoya University...
August 8, 2016: Surgery Today
Vaidehi Kumudchandra Pandya, Alpeshkumar Shakerlal Patel, Harsh Chandrakant Sutariya, Shruti Pradipkumar Gandhi
BACKGROUND: Evaluation of renal vascular variations is important in renal donors to avoid vascular complications during surgery. Venous variations, mainly resulting from the errors of the embryological development, are frequently observed. AIM: This retrospective cross-sectional study aimed to investigate the renal vascular variants with multidetector computed tomography (MDCT) angiography to provide valuable information for surgery and its correlations with surgical findings...
July 2016: Urology Annals
Michael Chan, Lloyd Ridley, Douglas J Dunn, David H Tian, Kevin Liou, Jessica Ozdirik, Chaitu Cheruvu, Christopher Cao
PURPOSE: The present meta-analysis aimed to compare the diagnostic accuracy of more recent computed tomography coronary angiography (CTCA) with invasive coronary angiography (ICA) in the assessment of graft patency after coronary artery bypass graft surgery (CABG). MATERIAL AND METHODS: A systematic review was performed using nine electronic databases from their dates of inception to July 2015. Predefined inclusion criteria included studies reporting on comparative outcomes using ≥64 slice multidetector computed tomography (MDCT) and ICA...
October 15, 2016: International Journal of Cardiology
Umesh Kumar Mittal, Lalit Garg, Harmeet Kaur Rissam, Sunil Kumar Puri
We report an interesting case of coronary cameral fistula with associated aneurysmal dilatation of coronary artery. The complete evaluation including anatomical relationships with surrounding vascular and non-vascular structures can be achieved with ECG gated multi-detector computed tomography (MDCT). MDCT has many advantages over echocardiography and digital subtraction catheter angiography, because of its ability to demonstrate the fistula separate from surrounding cardiovascular structures along with any aneurysm or obstruction in its course...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
Manjappa Mahadevappa, Madhav Hegde, Ravi Math
INTRODUCTION: The normative data of coronary artery size among Indians are sparse. It is often essential to know the coronary dimensions especially during interventions such as stenting to choose the appropriate size of the stent and to decide the very need for stenting. In current practice it is the luminal angiography which is most widely employed to assess the coronary artery size. However, luminal angiography is not very accurate in estimating the epicardial coronary artery size as it does not take into account the mural thickness of the arterial wall...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
C A F Tavares, C H R E Rassi, M G Fahel, B L Wajchenberg, C E Rochitte, A C Lerario
Evaluate whether glycemic control in type 2 diabetes (DM2) asymptomatic for coronary artery disease (CAD) affects not only the presence and magnitude of CAD but also the characteristics of plaque vulnerability using multidetector row computed coronary tomography (MDCT). Acute coronary syndrome (ACS) is frequently observed in asymptomatic DM2 patients. Positive vessel remodeling (PR) and low-attenuation plaques (LAP) identified by MDCT have been demonstrated to be characteristics of subsequent culprit lesions of ACS...
October 2016: International Journal of Cardiovascular Imaging
Ken Takada, Takanori Ito, Takashi Kumada, Hidenori Toyoda, Toshifumi Tada, Yasuhiro Sone, Tokio Endo, Keisuke Tanaka, Hirofumi Kitagawa, Katsuhiro Ichikawa
OBJECTIVES: We investigated the frequencies and factors associated with the presence of extra-hepatic feeding arteries (EHFAs) of hepatocellular carcinoma (HCC) using intra-arterial CT aortography images. METHODS: A total of 173 patients with HCC who underwent transarterial chemoembolization (TACE) in our institution between January 2013 and March 2015 were enrolled. The types of EHFAs were evaluated by CT aortography images using an apparatus that combines multidetector-row computed tomography and angiography system...
August 2016: European Journal of Radiology
Zhuo Liu, Ye Sun, Zhuolu Zhang, Lei Chen, Nan Hong
Usually, coronary computed tomography angiography (CCTA) is performed during breath-holding to reduce artifact caused by respiration. The objective of this study was to evaluate the feasibility of free-breathing CCTA compared to breath-holding using CT scanner with wide detector. To evaluate the feasibility of CCTA during free-breathing using a 256-MDCT. In 80 patients who underwent CCTA, 40 were performed during breath-holding (group A), and the remaining 40 during free-breathing (group B). The quality scores for coronary arteries were analyzed and defined as: 3 (excellent), 2 (good), and 1 (poor)...
July 2016: Medicine (Baltimore)
Amr Abdelhamed, Shin-Ichi Hisasue, Essam A Nada, Ali M Kassem, Mohammed Abdel-Kareem, Shigeo Horie
INTRODUCTION: Erectile dysfunction (ED) can precede coronary artery disease. In addition, silent myocardial ischemia (SMI) is more common in diabetic patients and is a strong predictor of cardiac events and death. AIM: To evaluate the presence of SMI in patients with diabetes and ED using multidetector computed tomographic coronary angiography (MDCT-CA). METHODS: This study evaluated patients with diabetes and ED without any history of cardiac symptoms or signs...
September 2016: Sexual Medicine
David Dreizin, Uttam K Bodanapally, Nagaraj Neerchal, Nikki Tirada, Michael Patlas, Edward Herskovits
OBJECTIVE: Manually segmented traumatic pelvic hematoma volumes are strongly predictive of active bleeding at conventional angiography, but the method is time intensive, limiting its clinical applicability. We compared volumetric analysis using semi-automated region growing segmentation to manual segmentation and diameter-based size estimates in patients with pelvic hematomas after blunt pelvic trauma. MATERIALS AND METHODS: A 14-patient cohort was selected in an anonymous randomized fashion from a dataset of patients with pelvic binders at MDCT, collected retrospectively as part of a HIPAA-compliant IRB-approved study from January 2008 to December 2013...
June 27, 2016: Abdominal Radiology
Mustafa Koplay, Serkan Guneyli, Hakan Akbayrak, Kenan Demir, Mesut Sivri, Ahmet Avci, Hasan Erdogan, Yahya Paksoy
OBJECTIVE: The aim of the study was to evaluate the diagnostic accuracy and effective radiation dose (ERD) of high pitch dual source multidetector computed tomography (MDCT) for coronary artery bypass graft (CABG) patency. MATERIALS AND METHODS: Fourty-five patients who underwent 128 × 2‑slice MDCT angiography with a prospective electrocardiogram-triggering, low-dose, high pitch, dual source, flash spiral acquisition mode after CABG surgery were included in the study...
July 2016: Wiener Klinische Wochenschrift
Cai-Ying Li, Bu-Lang Gao, Bing Song, Qiong-Ying Fan, Li-Xia Zhou, Ping-Yong Feng, Xue-Jing Zhang, Qing-Feng Zhu, Cheng Xiang, Song Peng, Ya-Fei Huang, Hai-Qing Yang
OBJECTIVES: To evaluate the classification and diameter of left gastric vein (LGV) in healthy Chinese adults with multi-detector computed tomography (MDCT). METHODS: MDCT angiography was performed in 234 healthy adults for the portal venous system. CT cross-sectional thin-layer reconstruction combined with maximum intensity projection, volume rendering and multiplanar reconstruction were applied. The diameter of LGV was measured at the point within 2 cm from LGV origination...
September 2016: Postgraduate Medicine
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