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Cardiac CT, CMR

William S A Jenkins, Alex T Vesey, Colin Stirrat, Martin Connell, Christophe Lucatelli, Anoushka Neale, Catriona Moles, Anna Vickers, Alison Fletcher, Tania Pawade, Ian Wilson, James H F Rudd, Edwin J R van Beek, Saeed Mirsadraee, Marc R Dweck, David E Newby
OBJECTIVE: Maladaptive repair contributes towards the development of heart failure following myocardial infarction (MI). The αvβ3 integrin receptor is a key mediator and determinant of cardiac repair. We aimed to establish whether αvβ3 integrin expression determines myocardial recovery following MI. METHODS: (18)F-Fluciclatide (a novel αvβ3-selective radiotracer) positron emission tomography (PET) and CT imaging and gadolinium-enhanced MRI (CMR) were performed in 21 patients 2 weeks after ST-segment elevation MI (anterior, n=16; lateral, n=4; inferior, n=1)...
December 7, 2016: Heart: Official Journal of the British Cardiac Society
Philipp Heermann, Walter Heindel, Christoph Schülke
Background Coronary artery anomalies encompass a clinically and anatomically variable spectrum including physiological variants and pathophysiologically relevant anomalies. The majority of the variants has no hemodynamic relevance and is often detected accidentally. The recognition of the rare and relevant anomalies that cause either relevant shunt volumes leading to myocardial ischemia or ventricular tachyarrhythmias with the risk of sudden cardiac death is of major importance. Methods This review is based on a literature search in PubMed conducted using the key words "coronary artery" and/or "anomaly" and/or "anomalous origin" and/or "myocardial bridging" and/or "coronary artery fistula" and/or "Bland-White-Garland" and/or "ALCAPA"...
December 1, 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Daniel Jeong, Kenneth L Gage, Claudia G Berman, Jaime L Montilla-Soler
A 53-year-old female with a history of metastatic left arm melanoma presented for F(18) fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) which showed a moderately FDG avid focus at her port catheter tip near the cavoatrial junction. Although catheter tip related FDG avidity has previously been suggested to be bland thrombus or infection, melanoma can metastasize to unusual locations including the superior vena cava. In addition, the patient had an elevated risk of anticoagulation due to a history of hemorrhagic brain metastases...
2016: Case Reports in Radiology
Hiroyuki Takaoka, Nobusada Funabashi, Masae Uehara, Yasunori Iida, Yoshio Kobayashi
PURPOSE: To evaluate the diagnostic accuracy of computed tomography (CT) for the detection of myocardial fibrosis, we compared the frequency of abnormal late enhancement (LE) in left ventricular myocardium (LVM) on CT with that on gadolinium-enhanced cardiac magnetic resonance (CMR) in patients with various myocardial diseases. METHODS: Fifty-six patients with suspected various myocardial diseases (19 with hypertrophic cardiomyopathy, 3 with cardiac amyloidosis, 3 with post myocarditis, 2 with dilated cardiomyopathy, 2 with cardiac sarcoidosis, 2 with cardiac tumor, 2 with previous myocardial infarction, 2 with hypertensive heart disease) underwent 1...
November 9, 2016: International Journal of Cardiology
Marc R Dweck, Michelle C Williams, Alastair J Moss, David E Newby, Zahi A Fayad
Ischemic heart disease is a complex disease process caused by the development of coronary atherosclerosis, with downstream effects on the left ventricular myocardium. It is characterized by a long preclinical phase, abrupt development of myocardial infarction, and more chronic disease states such as stable angina and ischemic cardiomyopathy. Recent advances in computed tomography (CT) and cardiac magnetic resonance (CMR) now allow detailed imaging of each of these different phases of the disease, potentially allowing ischemic heart disease to be tracked during a patient's lifetime...
November 15, 2016: Journal of the American College of Cardiology
Shohei Kataoka, Mitsuru Momose, Kenji Fukushima, Naoki Serizawa, Atsushi Suzuki, Chisato Kondo, Koichiro Abe, Shuji Sakai, Nobuhisa Hagiwara
AIMS: Cardiac sarcoidosis (CS) can be diagnosed using (18)F-FDG-PET/CT (PET), cardiovascular magnetic resonance (CMR), and (123)I-BMIPP/(201)TlCl dual myocardial SPECT. This study aims to clarify the relationships among the three modalities with respect to CS. METHODS AND RESULTS: We evaluated 16 patients (male n = 11; age 55 ± 13 years) with confirmed CS who underwent PET, CMR, and dual SPECT with gated SPECT before starting steroid therapy. The left ventricular myocardium was divided into 17 segments to obtain SUVmax for PET images, defect scores from 0 to 4 (0 normal; 4 absent), and mismatch scores for dual SPECT (BMDS, TLDS, and MS) images and late gadolinium enhancement (LGE) scores (0 none; 1 partly positive; 2 homogeneous) on CMR images...
November 1, 2016: Annals of Nuclear Medicine
Constantin Lapa, Theresa Reiter, Malte Kircher, Andreas Schirbel, Rudolf A Werner, Theo Pelzer, Carmen Pizarro, Dirk Skowasch, Lena Thomas, Ulrike Schlesinger-Irsch, Daniel Thomas, Ralph A Bundschuh, Wolfgang R Bauer, Florian C Gärtner
Diagnosis of cardiac sarcoidosis is often challenging. Whereas cardiac magnetic resonance imaging (CMR) and positron emission tomography/computed tomography (PET/CT) with 18F-fluorodeoxyglucose (FDG) are most commonly used to evaluate patients, PET/CT using radiolabeled somatostatin receptor (SSTR) ligands for visualization of inflammation might represent a more specific alternative. This study aimed to investigate the feasibility of SSTR-PET/CT for detecting cardiac sarcoidosis in comparison to CMR.15 patients (6 males, 9 females) with sarcoidosis and suspicion on cardiac involvement underwent SSTR-PET/CT imaging and CMR...
October 21, 2016: Oncotarget
S Mavrogeni, L Koutsogeorgopoulou, T Dimitroulas, G Markousis-Mavrogenis, G Kolovou
BACKGROUND: Cardiovascular disease (CVD) has been documented in >50% of systemic lupus erythematosus (SLE) patients, due to a complex interplay between traditional risk factors and SLE-related factors. Various processes, such as coronary artery disease, myocarditis, dilated cardiomyopathy, vasculitis, valvular heart disease, pulmonary hypertension and heart failure, account for CVD complications in SLE. METHODS: Electrocardiogram (ECG), echocardiography (echo), nuclear techniques, cardiac computed tomography (CT), cardiovascular magnetic resonance (CMR) and cardiac catheterization (CCa) can detect CVD in SLE at an early stage...
September 29, 2016: Lupus
Anna E Huis In 't Veld, Alexander G Van Vliet, Onno A Spruijt, M Louis Handoko, J Tim Marcus, Anton Vonk Noordegraaf, Harm-Jan Bogaard
BACKGROUND/OBJECTIVES: Assessing atrial sizes by routine non-gated CT-angiography (CTA) could be of value in discriminating between pulmonary hypertension (PH) due to heart failure with preserved ejection fraction (HFpEF) and idiopathic pulmonary arterial hypertension (IPAH). We aimed to determine how left (LA) and right atrial (RA) sizes on non-gated CTA can help discriminate between these patients. METHODS AND RESULTS: In an initial study, CMR was used in 15 IPAH and 15 PH-HFpEF patients to determine LA- and RA size throughout the cardiac cycle...
November 15, 2016: International Journal of Cardiology
Yoo Jin Hong, Tai Kyung Kim, Donghyun Hong, Chul Hwan Park, Sae Jong Yoo, Mary Ellen Wickum, Jin Hur, Hye-Jeong Lee, Young Jin Kim, Young Joo Suh, Andreas Greiser, Mun Young Paek, Byoung Wook Choi
OBJECTIVES: This study sought to evaluate whether patterns of myocardial change in doxorubicin-induced dilated cardiomyopathy determined using dual-energy computed tomography (CT) were similar to characterization by extracellular volume fraction (ECV) using cardiac magnetic resonance (CMR) T1-mapping and collagen volume fraction (CVF) measured using histology. BACKGROUND: Anthracycline chemoagents are effective against a wide range of malignant conditions. However, cardiotoxicity is a well-known adverse effect of these drugs...
July 2016: JACC. Cardiovascular Imaging
Marzia Rigolli, Sulakchanan Anandabaskaran, Jonathan P Christiansen, Gillian A Whalley
PURPOSE: Cardiac MR (CMR) is the gold standard for left ventricular (LV) quantification. However, two-dimensional echocardiography (2DE) is the most common approach, and both three-dimensional echocardiography (3DE) and multidetector CT (MDCT) are increasingly available. The clinical significance and interchangeability of these modalities remains under-investigated. Therefore, we undertook a systemic review to evaluate the accuracy and absolute bias in LV quantification of all the commonly available non-invasive imaging modalities (2DE, CE-2DE, 3DE, MDCT) compared to cardiac MR (CMR)...
2016: Open Heart
Hendrik Johannes Harms, Nils Henrik Stubkjær Hansson, Lars Poulsen Tolbod, Won Yong Kim, Steen Jakobsen, Kirsten Bouchelouche, Henrik Wiggers, Jørgen Frøkiaer, Jens Sörensen
UNLABELLED: Dynamic cardiac PET is used to quantify molecular processes in vivo. However, measurements of left ventricular (LV) mass and volume require electrocardiogram-gated PET data. The aim of this study was to explore the feasibility of measuring LV geometry using nongated dynamic cardiac PET. METHODS: Thirty-five patients with aortic-valve stenosis and 10 healthy controls underwent a 27-min (11)C-acetate PET/CT scan and cardiac MRI (CMR). The controls were scanned twice to assess repeatability...
September 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Heiner Latus, Titus Kuehne, Philipp Beerbaum, Christian Apitz, Georg Hansmann, Vivek Muthurangu, Shahin Moledina
Childhood pulmonary hypertension (PH) is a heterogenous disease associated with considerable morbidity and mortality. Invasive assessment of haemodynamics is crucial for accurate diagnosis and guidance of medical therapy. However, adequate imaging is increasingly important in children with PH to evaluate the right heart and the pulmonary vasculature. Cardiac MR (CMR) and computed tomography (CT) represent important non-invasive imaging modalities that may enable comprehensive assessment of right ventricular (RV) function and pulmonary haemodynamics...
May 2016: Heart: Official Journal of the British Cardiac Society
Massimo Rinuncini, Marco Zuin, Fiorenzo Scaranello, Majlinda Fejzo, Lucia Rampin, Domenico Rubello, Giuseppe Faggian, Loris Roncon
Radiological differentiation of an unknown cardiac masse is often a challenging issue. 18F-FDG-PET/CT imaging was performed to evaluate a left ventricle mass visualized on transthoracic echocardiogram (TTE) and cardiac magnetic resonance (CMR) in a patient with an history of ischemic heart disease. The metabolically inert area on the PET/CT, corresponding to the relatively homogenous hypodensity in the LV, was thought to represent an old organized LV thrombus. Histopathological examination confirmed the imaging diagnosis...
June 1, 2016: International Journal of Cardiology
Bedia Kara, Alaaddin Nayman, Ibrahim Guler, Enes Elvin Gul, Mustafa Koplay, Yahya Paksoy
BACKGROUND: The purpose of this study was to compare the left ventricular parameters obtained from multi-detector row computed tomography (MDCT) studies with two-dimensional echocardiography (2DE), and magnetic resonance imaging (MRI), which is accepted as the gold standard in the evaluation of left ventricular functions. The study also aimed to evaluate whether or not there is a relationship between the MR-Argus and CMR tools software programs which are used in post-process calculations of data obtained by MRI...
2016: Polish Journal of Radiology
Erwan Donal, Gregory Y H Lip, Maurizio Galderisi, Andreas Goette, Dipen Shah, Mohamed Marwan, Mathieu Lederlin, Sergio Mondillo, Thor Edvardsen, Marta Sitges, Julia Grapsa, Madalina Garbi, Roxy Senior, Alessia Gimelli, Tatjana S Potpara, Isabelle C Van Gelder, Bulent Gorenek, Philippe Mabo, Patrizio Lancellotti, Karl-Heinz Kuck, Bogdan A Popescu, Gerhard Hindricks, Gilbert Habib, Nuno M Cardim, Bernard Cosyns, Victoria Delgado, Kristina H Haugaa, Denisa Muraru, Koen Nieman, Giuseppe Boriani, Ariel Cohen
Atrial fibrillation (AF) is the commonest cardiac rhythm disorder. Evaluation of patients with AF requires an electrocardiogram, but imaging techniques should be considered for defining management and driving treatment. The present document is an expert consensus from the European Association of Cardiovascular Imaging (EACVI) and the European Heart Rhythm Association. The clinical value of echocardiography, cardiac magnetic resonance (CMR), computed tomography (CT), and nuclear imaging in AF patients are challenged...
April 2016: European Heart Journal Cardiovascular Imaging
Yuki Tanabe, Teruhito Kido, Teruyoshi Uetani, Akira Kurata, Tamami Kono, Akiyoshi Ogimoto, Masao Miyagawa, Tsutomu Soma, Kenya Murase, Hirotaka Iwaki, Teruhito Mochizuki
OBJECTIVES: To evaluate the feasibility of myocardial blood flow (MBF) by computed tomography from dynamic CT perfusion (CTP) for detecting myocardial ischemia and infarction assessed by cardiac magnetic resonance (CMR) or single-photon emission computed tomography (SPECT). METHODS: Fifty-three patients who underwent stress dynamic CTP and either SPECT (n = 25) or CMR (n = 28) were retrospectively selected. Normal and abnormal perfused myocardium (ischemia/infarction) were assessed by SPECT/CMR using 16-segment model...
February 6, 2016: European Radiology
Peter Marstrand, Anna Axelsson, Jens Jakob Thune, Niels Vejlstrup, Henning Bundgaard, Juliane Theilade
AIMS: Guidelines recommend evaluation of family members of sudden cardiac death victims. However, initiation of cascade screening in families with uncertain diagnoses is not cost-effective and may cause unnecessary concern. For these reasons, we set out to assess to what extent cardiac magnetic resonance imaging (CMR) would increase the diagnostic precision and thereby possibly change the indication for family screening in patients with ventricular tachyarrhythmias. METHODS AND RESULTS: We retrospectively collected data from 79 patients hospitalized with aborted cardiac arrest (resuscitated from a cardiac arrest), ventricular tachycardia (VT), or syncope who underwent a CMR at the Copenhagen University Hospital, Rigshospitalet, Denmark...
February 2, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Roja Tumma, Wei Dong, Jing Wang, Harold Litt, Yuchi Han
Cardiovascular magnetic resonance (CMR) imaging is often considered the reference method to assess cardiac tumors. However, little data exists concerning the effectiveness of CMR for the accurate diagnosis of cardiac masses. We sought to understand the diagnostic value of CMR for evaluation of suspected cardiac mass. A total of 249 consecutive CMR cases performed at a single center from January 2005 to June 2013 for evaluation of masses found on echocardiography or computed tomography (CT) were included. All the clinical data and imaging features of these patients were retrospectively reviewed and medical records were verified for follow up care...
June 2016: International Journal of Cardiovascular Imaging
Damiano Caruso, Russell D Rosenberg, Carlo N De Cecco, Stefanie Mangold, Julian L Wichmann, Akos Varga-Szemes, Daniel H Steinberg, Andrea Laghi, U Joseph Schoepf
Transcatheter aortic valve replacement (TAVR) has become an alternative to surgical intervention for symptomatic or severe aortic valve stenosis in patients with high surgical risk. Successful TAVR requires a multimodality imaging approach for appropriate patient selection and prosthesis sizing. Here, we describe individual imaging modalities and report their respective roles in this emerging field. To date, echocardiography remains the traditional test for determining patient candidacy and prosthesis selection, but computed tomography (CT) has been taking on an increasingly important role in the evaluation of both the aortic root anatomy and aortoiliofemoral vessels as a single examination...
February 2016: Current Cardiology Reports
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