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https://www.readbyqxmd.com/read/28105997/first-successful-transcatheter-double-valve-replacement-from-a-transapical-access-and-nine-month-follow-up
#1
Robert Bauernschmitt, Stefan Bauer, Christian Liewald, Ramiz Emini, Wolfgang Oechsner, Meinrad Beer, Ralf Sodian, Andreas Liebold
AIMS: While TAVI is the treatment of choice in patients with aortic stenosis considered inoperable or at high risk, interventional replacement of the mitral valve is still in the preclinical or early clinical phase. Our aim was to report on the first transcatheter double valve replacement into native valves from a transapical access. METHODS AND RESULTS: A 67-year-old, highly symptomatic female patient considered inoperable due to severe calcification of the mitral annulus and comorbidities was scheduled for transcatheter double valve replacement by the local Heart Team...
January 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28104936/myelopathy-in-adult-aortic-coarctation-causes-and-caveats-of-an-atypical-presentation
#2
Chandan Mourya, Ashish Verma, Anand Bansal, Ram C Shukla, Arvind Srivastava
A 57-year-old female presenting with acute-onset paraplegia was referred for magnetic resonance imaging (MRI) of cervico-dorsal spine. On MRI, multiple tortuous dilated vessels were noted in the epidural space with long segment cord compression and imaging features of compressive myelopathy. Associated small acute cervico-dorsal epidural hematoma was also noted in the same region. Computed tomography (CT) angiography was performed subsequently which revealed post-ductal coarctation of aorta with multiple arterial collaterals in the chest wall and spinal canal...
October 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28097081/b-cell-lymphoma-in-the-tricuspid-valve
#3
Ali C Agha, Joseph Limback, Raul Loya, Ashley Ramirez, Michael Valente, Jeremy Burt
Lymphoma can involve any organ or tissue that contains lymphoid tissue and the heart is no exception. A few prior case reports have described lymphoma encasing a coronary artery or involving one or more cardiac valves. We present a rare case of diffuse large B-cell lymphoma (DLBCL) involving the tricuspid valve and right coronary artery diagnosed on coronary CT angiography. The clinical and imaging characteristics of cardiac lymphoma are discussed.
December 16, 2016: Curēus
https://www.readbyqxmd.com/read/28095950/ct-coronary-angiography-vs-coronary-artery-calcium-scoring-for-the-occupational-assessment-of-military-aircrew
#4
Iain Parsons, Chris Pavitt, Rebecca Chamley, Jo d'Arcy, Ed Nicol
INTRODUCTION: To ensure flight safety military aircrew undergo regular clinical and occupational assessment. Coronary artery calcium scoring (CACS) has been established as an imaging modality to noninvasively assess coronary artery disease (CAD). CT coronary angiography (CTCA) potentially offers a more accurate assessment of CAD, but has not been formally assessed in military aircrew. This retrospective cohort study is designed to compare the theoretical differences in downstream investigations and occupational outcomes in aircrew with suspected CAD comparing CTCA with existing CACS pathways...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28095022/estimating-effective-dose-of-radiation-from-pediatric-cardiac-ct-angiography-using-a-64-mdct-scanner-new-conversion-factors-relating-dose-length-product-to-effective-dose
#5
Sigal Trattner, Anjali Chelliah, Peter Prinsen, Carrie B Ruzal-Shapiro, Yanping Xu, Sachin Jambawalikar, Maxwell Amurao, Andrew J Einstein
OBJECTIVE: The purpose of this study is to determine the conversion factors that enable accurate estimation of the effective dose (ED) used for cardiac 64-MDCT angiography performed for children. MATERIALS AND METHODS: Anthropomorphic phantoms representative of 1- and 10-year-old children, with 50 metal oxide semiconductor field-effect transistor dosimeters placed in organs, underwent scanning performed using a 64-MDCT scanner with different routine clinical cardiac scan modes and x-ray tube potentials...
January 17, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28091809/a-review-of-penetrating-brain-trauma-epidemiology-pathophysiology-imaging-assessment-complications-and-treatment
#6
REVIEW
Mona T Vakil, Ajay K Singh
Gunshot injuries are the most common cause of penetrating brain injury (PBI) and carry a high morbidity and mortality. The incidence of PBI has increased over the last decade with an estimated 35,000 civilian deaths annually. Patients that survive to reach the hospital require rapid triage and imaging evaluation. CT findings in conjunction with the Glasgow Coma Scale are typically used to determine which patients are surgical candidates. Radiologists should be familiar with the various injury patterns and imaging findings which are poor prognostic indicators, notably brainstem, bilateral hemispheric, multilobar, or transventricular injuries...
January 14, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28089539/reperfusion-therapy-in-patients-with-acute-ischaemic-stroke-caused-by-cervical-artery-dissection
#7
L A Crespo Araico, R Vera Lechuga, A Cruz-Culebras, C Matute Lozano, A de Felipe Mimbrera, P Agüero Rabes, E Viedma Guiard, C Estévez Fraga, J Masjuan Vallejo
INTRODUCTION: Cervical artery dissection (CAD) is responsible for up to 20% of all ischaemic strokes in patients younger than 45. The benefits of acute-phase reperfusion therapy in these patients have yet to be confirmed. METHODS: We conducted a retrospective review of patients with CAD admitted to a comprehensive stroke centre between 2010 and 2015. We recorded baseline clinical characteristics, treatments, functional outcomes, and mortality. RESULTS: We identified 35 cases of CAD (23 carotid/12 vertebral); mean age was 43...
January 12, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28089233/epicardial-adipose-tissue-and-myocardial-ischemia-assessed-by-computed-tomography-perfusion-imaging-and-invasive-fractional-flow-reserve
#8
Rahul G Muthalaly, Nitesh Nerlekar, Dennis T L Wong, James D Cameron, Sujith K Seneviratne, Brian S Ko
BACKGROUND: Epicardial adipose tissue (EAT) is a metabolically active fat depot that is associated with incident coronary artery disease (CAD) and major adverse cardiovascular events. The relationship between EAT and myocardial ischemia remains unclear. This study investigated the relationship between EAT volume and the presence of perfusion defects on myocardial computed tomographic perfusion imaging (CTP) and functional stenoses on invasive fractional flow-reserve (FFR). METHODS: Data were obtained from a previous prospective cross-sectional study in patients with suspected CAD...
December 30, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28081050/white-paper-of-the-society-of-computed-body-tomography-and-magnetic-resonance-on-dual-energy-ct-part-3-vascular-cardiac-pulmonary-and-musculoskeletal-applications
#9
Carlo N De Cecco, U Joseph Schoepf, Lynne Steinbach, Daniel T Boll, W Dennis Foley, Ravi K Kaza, David N Bolus, Desiree E Morgan, Dushyant V Sahani, William P Shuman, Marilyn J Siegel, Terri J Vrtiska, Benjamin M Yeh, Lincoln L Berland
This is the third of a series of 4 white papers that represent Expert Consensus Documents developed by the Society of Computed Body Tomography and Magnetic Resonance through its Task Force on dual-energy computed tomography. This paper, part 3, describes computed tomography angiography and thoracic, cardiac, vascular, and musculoskeletal clinical applications. At the end of the discussion of each application category (vascular, cardiac, pulmonary, and musculoskeletal), we present our consensus opinions on the current clinical utility of the application and opportunities for further research...
January 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28077482/rare-case-of-haemoptysis
#10
Elrasheid Ali Awouda, Ahmed Anwar Elnori, AlaEldin Hassan Ahmed
We report a case of a 39-year-old man who presented with coughing up blood for 5 days. On the day of admission, he coughed up about 300 mL of fresh blood. He mentioned that he has had cough for the past 10 years. On clinical examination, he was afebrile, tachypneic, tahycardic and normotensive. Rest of the physical examination was normal. His oxygen saturation breathing room air was 96%. His full blood count showed haemoglobin 9.3 g/dL. His chest radiograph was reported as normal. CT chest showed a vascular right paracardiac soft tissue density...
January 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28075612/comparison-of-mechanical-versus-hand-administration-of-iv-contrast-agents-for-pediatric-pulmonary-ct-angiography
#11
Matthew A Zapala, David Zurakowski, Edward Y Lee
OBJECTIVE: The purpose of this study was to assess the difference between mechanical versus hand administration of IV contrast agents on the diagnostic quality of pediatric pulmonary CT angiography (CTA). MATERIALS AND METHODS: A retrospective review of the medical records was performed to detect pediatric patients (≤ 18 years) with pulmonary CTA performed between September 2012 and March 2015. Patients were placed into two cohorts on the basis of the method of contrast administration (mechanical vs hand)...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28071959/tenfold-risk-increase-of-major-cardiovascular-events-after-high-limb-amputation-with-non-compliance-for-secondary-prevention-measures
#12
Evgeniya V Shalaeva, Hugo Saner, Bakhtiyor B Janabaev, Aleksandra V Shalaeva
Background The aim of the study was to evaluate the impact of compliance with lifestyle recommendations and medication on 1-year prevention of major adverse cardiovascular events (MACE) in patients with type 2 diabetes (T2D) after trans-femoral amputation (TFA). Methods In this prospective single-center interventional cohort study, 179 consecutive T2D patients with symptomatic coronary artery disease (CAD) underwent 1-year follow-up examination after TFA in 2013. Lower limb and coronary artery CT angiography were provided before surgery; physical examination and laboratory tests were performed at baseline and every month after TFA for 1 year...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28071288/vulnerable-carotid-plaque-imaging-and-histopathology-without-a-dedicated-mri-receiver-coil
#13
Laura A Fitzpatrick, Nadav Berkovitz, Marlise P Dos Santos, Nevin Majeed, Rafael Glikstein, Santanu Chakraborty, John P Veinot, Grant Stotts, Alain Berthiaume, Robert Chatelain
Stroke is associated with vulnerable carotid artery plaques showing specific histopathologic features, namely a lipid-rich necrotic core, intraplaque hemorrhage, ulceration, and thin fibrous cap. While ultrasound and computed tomography (CT) can identify carotid plaques and determine the extent of stenosis, magnetic resonance imaging (MRI) provides further information regarding plaque composition and morphology. In this feasibility study, three patients with symptomatic, moderately stenosed plaques were imaged with CT angiography (CTA) and MRI (3T and 1...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28070743/cardiac-ct-angiography-ccta-predicts-left-atrial-appendage-occluder-device-size-and-procedure-outcome
#14
Orly Goitein, Noam Fink, Ilan Hay, Elio Di Segni, Victor Guetta, David Goitein, Yafim Brodov, Eli Konen, Michael Glikson
AIM: To investigate the role of cardiac CT angiography (CCTA) in predicting optimal left atrial appendage (LAA) occluder size and procedure outcome. METHODS AND RESULTS: Thirty-six patients underwent pre-procedural CCTA. CCTA and TEE LAA orifice diameters and perimeters were compared with the implanted device size. CCTA 3D configuration was correlated with procedure outcome. Watchman™ device (N = 18): diameters were 21 ± 4, 26 ± 5 and 25 ± 3 mm for TEE, CCTA and inserted device, respectively...
January 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28069733/prognostic-value-of-coronary-ct-angiography-lessons-from-the-west-denmark-cardiac-registry
#15
EDITORIAL
Jonathon Leipsic, Philipp Blanke
No abstract text is available yet for this article.
January 9, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28069255/is-urgent-ct-angiography-necessary-in-cases-of-acute-lower-gastrointestinal-bleeding
#16
A Martín Díaz, L Fernández Rodríguez, M Martí de Gracia
Acute lower gastrointestinal bleeding usually presents as hematochezia, rectal bleeding or melena and represents 1-2% of the medical appointments in the Emergency Services. Mortality reaches the 30-40% and it is highly related with the severity and associated comorbidity. Most clinical practice guidelines include colonoscopy at some point in the diagnostic and therapeutic process (urgent for severe cases and ambulatory for mild ones) and look for predictors of severity. In the last years, there have been numerous studies where is clear the relevance and complementarity of advanced diagnostic imaging techniques, gradually incorporated as an alternative or second step in severe cases...
January 6, 2017: Radiología
https://www.readbyqxmd.com/read/28065612/vertebral-tortuosity-index-in-patients-with-non-connective-tissue-disorder-related-aneurysm-disease
#17
F Virgilio, B Maurel, M Davis, G Hamilton, T M Mastracci
OBJECTIVE: The vertebral tortuosity index (VTI) predicts increased risk of acute aortic events in patients with known genetic aortopathies. This study describes the VTI in a cohort of patients with non-connective tissue disorder-related large aneurysms. METHODS: Hospital imaging records from July 2012 to March 2016 were interrogated to identify patients with aneurysmal disease who had undergone computed tomographic angiography that included imaging of vertebral arteries...
January 5, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28065380/iterative-model-reconstruction-reduces-calcified-plaque-volume-in-coronary-ct-angiography
#18
Mihály Károlyi, Bálint Szilveszter, Márton Kolossváry, Richard A P Takx, Csilla Celeng, Andrea Bartykowszki, Ádám L Jermendy, Alexisz Panajotu, Júlia Karády, Rolf Raaijmakers, Walter Giepmans, Béla Merkely, Pál Maurovich-Horvat
OBJECTIVE: To assess the impact of iterative model reconstruction (IMR) on calcified plaque quantification as compared to filtered back projection reconstruction (FBP) and hybrid iterative reconstruction (HIR) in coronary computed tomography angiography (CTA). METHODS: Raw image data of 52 patients who underwent 256-slice CTA were reconstructed with IMR, HIR and FBP. We evaluated qualitative, quantitative image quality parameters and quantified calcified and partially calcified plaque volumes using automated software...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28065231/impact-of-myocardial-bridge-mural-coronary-artery-on-myocardial-blood-supply
#19
Xin-Bin Zhao, Yu Fu, Xiao-Bo Dong, Zhi Qi
Objective To explore the impact of myocardial bridge-mural coronary artery (MB-MCA) on myocardial blood supply. Methods The imaging data of 74 patients with the isolate MB in the left anterior descending artery undergoing 256-slice CT coronary angiography and myocardial perfusion imaging (MPI) were retrospectively analyzed. The subjects were divided into incomplete and complete MB types. The length of MB and the systolic stenosis degree of MCA were measured.The type and length of MB and the systolic stenosis degree of MCA (according to Noble grade) were compared between the normal and abnormal MPI groups...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28062802/moving-target-transient-rotational-stenosis-precipitating-jugular-bow-hunter-s-syndrome
#20
Waleed Brinjikji, Christopher S Graffeo, Avital Perry, Terence Zimmerman, Jeffrey R Janus, Pearce P Morris, Gregory D Cascino, Giuseppe Lanzino
A 60-year-old man presented with a 10-month history of of stereotypical spells characterized by vertigo, tinnitus, blurred vision, left hemibody numbness, and occasional syncope, precipitated by turning his head leftwards. Cerebral angiography and CT angiography of the head and neck with provocative maneuvers did not demonstrate vertebral artery narrowing. However, there was narrowing of the left internal jugular vein due to extrinsic compression from the sternocleidomastoid with leftward head rotation in the setting of hypoplasia of the right internal jugular vein...
January 6, 2017: Journal of Neurointerventional Surgery
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