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Cardiac computed tomography

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https://www.readbyqxmd.com/read/29153902/robotic-buccal-mucosal-graft-ureteroplasty-for-complex-ureteral-stricture
#1
Sohrab Arora, Logan Campbell, Mouafak Tourojman, Daniel Pucheril, Lamont R Jones, Craig Rogers
OBJECTIVE: To demonstrate robot-assisted ureterolysis and buccal mucosal graft (BMG) ureteroplasty for the management of a complex, long recurrent ureteral stricture developing after ureterolysis, and also to demonstrate the use of near-infrared fluorescence (NIRF) imaging and intraoperative ureteroscopy during this procedure. METHODS: A 58-year-old man with a history of cabergoline treatment and a cardiac catheterization through the left groin presented with left flank pain and hydronephrosis...
December 2017: Urology
https://www.readbyqxmd.com/read/29153872/malignant-lymphoma-arising-in-cardiac-myxoma-presenting-with-peripheral-arterial-emboli
#2
Cheol Keun Park, Yoon Ah Cho, Moonsik Kim, Hyo Sup Shim
Composite tumors of cardiac myxoma and malignant lymphoma are extremely rare, with 11 of such cases reported in the literature. A 44-year-old man presented to us with abrupt right lower leg pain. A computed tomography angiogram revealed segmental obstruction of the right common femoral artery, and embolectomy was performed. The embolectomy specimen contained several clusters of degenerated round/oval atypical cells in the fibrinous or myxoid background. Immunohistochemical examination revealed that these atypical cells were negative for cytokeratin and non-specifically expressed CD45...
October 14, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29151526/recent-inferior-myocardial-infarction-complicated-with-a-right-ventricular-thrombus-detected-by-three-cardiac-imaging-modalities
#3
Toshiki Kuno, Syohei Imaeda, Kenji Hashimoto, Toshinobu Ryuzaki, Tetsuya Saito, Hiroyuki Yamazaki, Ryota Tabei, Masaki Kodaira, Manabu Hase, Yohei Numasawa
We report the case of a 71-year-old woman diagnosed with recent inferior myocardial infarction complicated with right ventricular infarction and a right ventricular thrombus. Three-dimensional transthoracic echocardiography, contrast-enhanced computed tomography, and cardiac magnetic resonance imaging clearly detected a thrombus. We consider cases with a recent right ventricular infarction to require assessment for thrombus formations in the right ventricle. Fortunately, vigorous anticoagulation therapy resolved the thrombi in both the right ventricle and right coronary artery...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29151483/imaging-of-right-to-left-shunt-in-an-adult-patient-with-unroofed-coronary-sinus-with-persistent-left-superior-vena-cava
#4
Chieko Sakai, Tetsuhiro Yamano, Tomonori Miki, Akiko Otsuka, Yuzuko Kato, Michiyo Yamano, Takeshi Nakamura, Satoaki Matoba
A 54-year-old woman with a history of multiple cardiac surgeries suffered from hypoxemia caused by a right-to-left intra-cardiac shunt due to coronary sinus (CS) anomaly with persistent left superior vena cava (PLSVC). Both the contrast echocardiography and enhanced computed tomography (CT) provided conclusive diagnosis of this rare congenital anomaly, which was overlooked for a long time. However, an important diagnostic clue was left-arm injection of the contrast media. In the present case, previously performed enhanced CT with its routine manner, i...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29151328/evaluation-of-pulmonary-vein-anatomy-using-256-slice-computed-tomography
#5
Yinghong Shi, Shaohua Mi, Yunxia Shi, Hongbo Wang, Jian Li, Benxia Yu, Fengli Liu, Heng Ma, Bin Wang
Background/aim: This study aimed to evaluate pulmonary vein (PV) anatomy using 256-slice computed tomography (CT), which may be necessary for electrophysiologists to know before radiofrequency catheter ablation (RFCA) therapy.Materials and methods: A total of 102 patients with paroxysmal and persistent atrial fibrillation underwent 256-slice cardiac CT angiography prior to catheter ablation. PV morphology, ostial diameter, ostial orientation, and distance from ostium to first bifurcation were evaluated using three-dimensional volume-rendering and multiplanar-reformatting technology...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29151308/unknown-vascular-compression-of-the-airway-in-patients-with-congenitalheart-disease-and-persistent-lower-respiratory-symptoms
#6
Tuğba Şişmanlar Eyüboğlu, Ayşe Tana Aslan, Çiğdem Öztunalı, Sedef Tunaoğlu, Ayşe Deniz Oğuz, Serdar Kula, Betül Derinkuyu, Öznur Boyunağa
Background/aim: Airway compression (AC) by vascular structures is an important complication of congenital heart disease (CHD) that often goes unrecognized. It is not easy to identify whether CHD patients require additional invasive examinations or not. Therefore, the present study aims to develop an AC diagnostic algorithm for CHD patients. Materials and methods: CHD patients with persistent respiratory symptoms that were treated between January 2007 and December 2015 were retrospectively reviewed. The following data were recorded for all CHD patients with AC: age, cardiac anomalies, the compressed structure, the airway diameter ratio (ADR), the compressing structure(s), treatment, and follow-up...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29148628/clinical-significance-of-st-depression-at-exercise-stress-testing-in-competitive-athletes-usefulness-of-coronary-ct-during-screening
#7
Fabio Sperandii, Emanuele Guerra, Eliana Tranchita, Carlo Minganti, Chiara Lanzillo, Antonia Nigro, Federico Quaranta, Attilio Parisi, Mauro DI Roma, Luciano Maresca, Federica Fagnani, Leonardo Calò
BACKGROUND: Congenital coronary anomalies (CCAs) and coronary artery disease (CAD) arouse intense scientific and clinical interest in sports medicine and sports cardiology medical communities because of their potential to trigger sudden cardiac death (SCD) in athletes. Exercise stress testing represent the first instrumental assessment to evaluate electrocardiographic changes during effort. Coronary computed tomography angiography (CCTA) is an advanced accurate noninvasive imaging modality for excluding CAD and abnormalities of origin and course of coronary vessels...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29147830/asymptomatic-adult-intrapericardial-diaphragmatic-hernia-detected-on-cardiac-spect-ct
#8
Muhammad Yasir Adeel, Saad Sikanderkhel, Zartashia Shahab, Isabel Oliva, Jaime Gerber
An 83-year-old man underwent exercise stress test with single photon emission computed tomography (SPECT) myocardial perfusion imaging for new electrocardiogram (EKG) changes. The stress EKG did not show any significant changes. Myocardial perfusion imaging with SPECT demonstrated an inferior wall defect and extracardiac uptake of nuclear tracer. Simultaneous cardiac computed tomography performed for attenuation correction showed presence of intrapericardial hepatic tissue in an anterior diaphragmatic hernia...
November 16, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29146023/longitudinal-associations-of-pericardial-and-intrathoracic-fat-with-progression-of-coronary-artery-calcium-from-the-framingham-heart-study
#9
Jane J Lee, Alison Pedley, Udo Hoffmann, Joseph M Massaro, Christopher J O'Donnell, Emelia J Benjamin, Michelle T Long
Cross-sectional studies have shown that pericardial fat is associated with atherosclerotic burden above and beyond generalized and central adiposity. Whether pericardial fat is longitudinally associated with coronary artery calcium (CAC) has not been firmly established. We examined the associations between cardiac ectopic fat including pericardial and intrathoracic fat with CAC progression and incidence in a community-based study setting. Study participants were from the Framingham Heart Study Offspring and Third Generation Cohorts who underwent multidetector computed tomography at 2 consecutive examinations (2002 to 2005 and 2008 to 2011) for the assessment of CAC...
October 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29145895/comparative-analysis-of-high-sensitivity-cardiac-troponin-i-and-t-for-their-association-with-coronary-computed-tomography-assessed-calcium-scoring-represented-by-the-agatston-score
#10
Jonas Rusnak, Michael Behnes, Thomas Henzler, Nadine Reckord, Nils Vogler, Mathias Meyer, Ursula Hoffmann, Michele Natale, Julia Hoffmann, Sonja Hamed, Kathrin Weidner, Siegfried Lang, Agnibh Mukherji, Holger Haubenreisser, Stefan O Schoenberg, Martin Borggrefe, Thomas Bertsch, Ibrahim Akin
BACKGROUND: This study evaluates the association between high-sensitivity cardiac troponin I (hs-cTnI) and T (hs-cTnT) and coronary calcium concentration (CAC) detected by coronary computed tomography (CCT) and evaluated with the Agatston score in patients with suspected coronary artery disease (CAD). METHODS: Patients undergoing CCT during routine clinical care were enrolled prospectively. CCT was indicated for patients with a low to intermediate pretest probability for CAD...
November 16, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/29145264/influences-of-cardiac-motion-on-computed-tomography-guided-biopsy-of-lung-nodules-located-near-the-heart
#11
Li-Sheng Hsu, Chien-Wei Chen, Chia-Hao Chang, Chien-Han Liao, Sheng-Lung Hsu, Wei-Ming Lin
Computed tomography (CT)-guided lung biopsy of nodules located near the heart may be associated with potential complications. To understand the influences of cardiac motion on lung parenchyma during biopsy, we processed the cardiac phase images of coronary CT angiography (CCTA) and noticed shifts in mediastinum lung margin (MLM) at different zones.Thirty eight CCTA (27 men and 11 women) were retrospectively evaluated. Image processing was done with Fiji (an open source Java image processing program by Fiji contributors) using 10% to 90% phase images of CCTA; and tissue displacement (MLM shift) was shown on the resulting images...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142490/postoperative-elevated-resistive-indices-do-not-predict-hepatic-artery-thrombosis-in-extended-criteria-donor-livers
#12
Eric J Siskind, Fauzia Vandermeer, Tamar R Siskind, David A Bruno, Samuel Sultan, Josue Alvarez-Casas, Arielle Stafford, Barton Lane, John C Lamattina, Rolf N Barth, Steven I Hanish
Postoperative transplant liver ultrasounds were analyzed in standard criteria donor (SCD), extended criteria donor (ECD), and donation after cardiac death (DCD) liver allografts to determine if elevated resistive indices (RIs) are consistently present and if they are pathological. Postoperative transplant liver ultrasounds were reviewed from 115 consecutive patients. Hepatic arterial RIs were stratified based on the type of donor: DCD, macrosteatosis (>30%), or standard criteria. In all patients with elevated RI, subsequent ultrasounds were reviewed to demonstrate RI normalization...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29141441/correlation-between-heart-size-and-emphysema-in-patients-with-chronic-obstructive-pulmonary-disease-ct-based-analysis-using-inspiratory-and-expiratory-scans
#13
Hayato Tomita, Tsuneo Yamashiro, Shin Matsuoka, Shoichiro Matsushita, Yasuo Nakajima
The objective of this study was to investigate the relationship between the extent of emphysema and heart size in patients with chronic obstructive pulmonary disease (COPD) using inspiratory and expiratory chest computed tomography (CT). This retrospective study was approved by the institutional review board and informed consent was waived. We measured lung volume (LV), low attenuation area percent (%LAA; less than or equal to -950 HU), maximum cardiac area, and maximum transverse cardiac diameter on inspiratory/expiratory chest CT in 60 patients with COPD...
January 1, 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/29141318/-ras-associated-autoimmune-leukoproliferative-disorder-a-report-of-2-cases-and-literature-review
#14
T Y He, C R Li, Y Xia, F F Liang, Y Luo, J Yang
Objective: To investigate the clinical features and genetic characteristics of cases with Ras-associated autoimmune leukoproliferative disorder(RALD). Method: Characteristics of clinical data and gene mutation of the first two cases in China with RALD were retrospectively analyzed. The related literature was searched by using search terms "NRAS" , "KRAS" or "RALD" . Result: Case1, a seven-year-seven-month old girl, was admitted due to "thrombocytopenia and splenomegaly for three years" . Palpation showed enlargement of submandibular lymph nodes and hepatosplenomegaly...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29141241/mmp-9-and-its-regulators-timp-1-and-emmprin-in-patients-with-acute-st-elevation-myocardial-infarction-a-nordistemi-substudy
#15
Trine Baur Opstad, Ingebjørg Seljeflot, Ellen Bøhmer, Harald Arnesen, Sigrun Halvorsen
OBJECTIVES: The extracellular matrix is involved in wound repair after acute myocardial infarction (AMI). We investigated whether matrix metalloproteinase (MMP)-9, tissue inhibitor of metalloproteinases (TIMP)-1, and the MMP inducer (EMMPRIN) are associated with infarct size, left ventricular function, and clinical outcome in ST-elevation-MI (STEMI). METHODS: In 243 STEMI patients, circulating EMMPRIN, MMP-9, and TIMP-1 were analyzed 3 days and 3 months post-AMI...
November 16, 2017: Cardiology
https://www.readbyqxmd.com/read/29140803/use-of-postmortem-computed-tomography-to-detect-bowel-obstruction-and-its-relationship-to-the-cause-of-death
#16
Dominic Gascho, Sarah Schaerli, Lucile Tuchtan-Torrents, Michael J Thali, Guillaume Gorincour
Bowel distension frequently indicates bowel obstruction, which is a common diagnosis in clinical radiology. Typically, symptoms and complaints lead to radiological examinations and the detection of the etiology. Untreated intestinal obstructions can lead to a fatal outcome through cardiac failure due to septic shock. Certain of these cases undergo medicolegal investigations depending on the case history, the condition of the decedent, the location of the finding, or recent visits to medical professionals. Computed tomography (CT) is a recommended method in clinical radiology for the detection of bowel obstruction, which is indicated by bowel distension and further radiological signs (eg, the whirl sign, which indicates a volvulus)...
November 15, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29138794/noninvasive-cardiac-testing-vs-clinical-evaluation-alone-in-acute-chest-pain-a-secondary-analysis-of-the-romicat-ii-randomized-clinical-trial
#17
Samuel W Reinhardt, Chien-Jung Lin, Eric Novak, David L Brown
Importance: The incremental benefit of noninvasive testing in addition to clinical evaluation (history, physical examination, an electrocardiogram [ECG], and biomarker assessment) vs clinical evaluation alone for patients who present to the emergency department (ED) with acute chest pain is unknown. Objective: To examine differences in outcomes with clinical evaluation and noninvasive testing (coronary computed tomographic angiography [CCTA] or stress testing) vs clinical evaluation alone...
November 14, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29137818/molecular-imaging-for-the-diagnosis-of-infective-endocarditis-a-systematic-literature-review-and-meta-analysis
#18
Daniel Juneau, Mohammad Golfam, Samir Hazra, Fernanda Erthal, Lionel S Zuckier, Jordan Bernick, George A Wells, Rob S B Beanlands, Benjamin J W Chow
BACKGROUND: Infective endocarditis (IE) is a serious, potentially life-threatening condition. Currently, the modified Duke criteria is used to assist with the diagnosis of IE, but it can still remain difficult. Growing data supports the potential use of molecular imaging to assist in the diagnosis of IE. Our objective was to understand the potential utility of (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography-computed tomography (PET-CT), (67)Ga citrate and radiolabeled white blood cell (WBC) scintigraphy in the diagnosis of IE...
November 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29137093/an-incidental-encounter-of-a-rare-high-take-off-right-coronary-artery-a-case-report
#19
Xicheng Deng, Peng Huang, Wenjuan Chen, Xiaohui Yang, Qianjun Liu, Yunbin Xiao, Cheng He
RATIONALE: High take-off of the coronary arteries is a rare cardiac anatomic anomaly, which may occur independently or with other congenital heart defects. In the clinical setting, it is noteworthy as a cause of sudden cardiac death. Further, it is vital to identify such anomalies to avoid intraoperative catastrophes in surgeries for congenital heart defects. PATIENT CONCERNS: A II/6 systolic heart murmur on physical examination was incidentally found in a 9-year-old boy; he was confirmed to have a secundum-type atrial septal defect on echocardiography...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137066/a-coronary-artery-fistula-having-connection-between-2-coronary-arteries-and-the-left-ventricle-a-case-report
#20
Chang-Yeon Kim, Ji Yong Choi, Kee Sik Kim
RATIONALE: Cases of coronary artery fistula having a connection with the cardiac cavity are rare. Here, we report a case in which 2 coronary arteries empty into the left ventricular cavity together. PATIENT CONCERNS: A 63-year-old woman who was diagnosed as having hypertension 20 years prior presented with dyspnea. DIAGNOSES: The coronary angiography revealed coronary artery fistula. INTERVENTIONS: Chest X-ray showed pulmonary edema...
November 2017: Medicine (Baltimore)
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