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International Journal of Cardiovascular Imaging

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https://www.readbyqxmd.com/read/29923157/cmr-guidance-of-passively-tracked-endomyocardial-biopsy-in-an-in-vivo-porcine-model
#1
P Behm, M Gastl, A Jahn, A Rohde, S Haberkorn, S Krueger, S Weiss, B Schnackenburg, M Sager, K Düring, H Clogenson, P Horn, R Westenfeld, M Kelm, M Neizel-Wittke, F Bönner
Endomyocardial biopsy (EMB) is considered to be the diagnostic gold-standard in detection of myocardial-inflammation. EMB is usually conducted under fluoroscopy without any specific target information. Specific target-information provided by cardiovascular magnetic resonance (CMR) may improve specificity of EMB. The aim was to investigate feasibility and safety of CMR-guided and targeted EMB in a preclinical-model using passively-tracked devices. Procedures were performed on a MRI-System equipped with an Interventional Software-Platform for real-time imaging...
June 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29923156/clinical-efficacy-of-aspirin-with-identification-of-intimal-morphology-by-optical-coherence-tomography-in-preventing-event-recurrence-in-patients-with-vasospasm-induced-acute-coronary-syndrome
#2
Yonggu Lee, Hwan-Cheol Park, Jinho Shin
Using optical coherence tomography (OCT), we found that there were morphological differences in the coronary intima between patients with vasospasm-induced acute coronary syndrome (VACS) and those with stable variant angina. We investigated whether aspirin use would protect against chest pain recurrence in patients with VACS. A retrospective cohort study was performed. Patients with ST-segment elevation who were confirmed to have VACS by a provocation test were included. OCT was performed at the index event and when chest pain recurred to assess intimal morphology...
June 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29915878/less-pronounced-reverse-left-ventricular-remodeling-in-patients-with-bicuspid-aortic-stenosis-treated-with-transcatheter-aortic-valve-replacement-compared-to-tricuspid-aortic-stenosis
#3
Tian-Yuan Xiong, Xi Wang, Yi-Jian Li, Yan-Biao Liao, Zhen-Gang Zhao, Xin Wei, Yuan-Ning Xu, Ming-Xia Zheng, Xuan Zhou, Yong Peng, Jia-Fu Wei, Yuan Feng, Mao Chen
To compare reverse left ventricular (LV) remodeling after transcatheter aortic valve replacement (TAVR) between patients with bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV). We retrospectively reviewed data of patients with at least two serial echocardiographic follow-ups (1, 3, 6 months and 1 year) post-TAVR. A total of 116 patients were identified. BAV morphology was documented in 67 patients. LV mass index (LVMi) at baseline was not significantly different between the TAV and BAV group (178...
June 18, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29915877/distinguishing-acute-from-chronic-aortic-dissections-using-ct-imaging-features
#4
Norman A Orabi, Leslie E Quint, Kuanwong Watcharotone, Bin Nan, David M Williams, Karen M Kim
The aim was to compare computed tomography (CT) features in acute and chronic aortic dissections (AADs and CADs) and determine if a certain combination of imaging features was reliably predictive of the acute versus chronic nature of disease in individual patients. Consecutive patients with aortic dissection and a chest CT scan were identified, and 120 CT scans corresponding to 105 patients were reviewed for a variety of imaging features. Statistical tests assessed for differences in the frequency of these features...
June 18, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29909590/do-cta-measurements-of-annular-diameter-perimeter-and-area-result-in-different-tavi-prosthesis-sizes
#5
Barbora Horehledova, Casper Mihl, Babs M F Hendriks, Nienke G Eijsvoogel, Jindrich Vainer, Leo F Veenstra, Joachim E Wildberger, Marco Das
Incorrect prosthesis size has direct impact on patient outcome after transcatheter aortic valve implantation (TAVI) procedure. Currently, annular diameter, area or perimeter may be used for prosthesis size selection. The aim was to evaluate whether the use different annular dimensions would result in the selection of different prosthesis sizes, when assessed in the same TAVI-candidate during the same phase of a cardiac cycle. Fifty consecutive TAVI-candidates underwent retrospectively ECG-gated computed tomography angiography (CTA)...
June 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29876693/superficial-wall-stress-the-long-awaited-comprehensive-biomechanical-parameter-to-objectify-and-quantify-our-intuition
#6
EDITORIAL
Juan Luis Gutiérrez-Chico
No abstract text is available yet for this article.
June 6, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29869759/semi-automatic-ct-angiography-based-evaluation-of-the-aortic-annulus-in-patients-prior-to-tavr-interchangeability-with-manual-measurements
#7
Dominik Zinsser, Alena B Baumann, Katharina Stella Winter, Fabian Bamberg, Philipp Lange, Konstantin Nikolaou, Maximilian Reiser, Christian Kupatt, Thomas Kröncke, Florian Schwarz
To compare a semi-automatic software tool for the measurement of aortic annulus dimensions with manual measurements by expert readers and to analyze whether and to what extent interchangeability exists between semi-automatic and manual measurements. We retrospectively included 374 consecutive patients with high-grade aortic stenosis who had undergone CT-angiography of the heart prior to trans-catheter aortic valve replacement (TAVR). In independent analyses, two expert readers manually measured aortic annulus dimensions (long axis, short axis, circumference, area) as well as the distance of the coronary ostia from the annulus plane...
June 5, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29858961/the-relationships-between-the-pulsatile-flow-form-of-ocular-microcirculation-by-laser-speckle-flowgraphy-and-the-left-ventricular-end-diastolic-pressure-and-mass
#8
Tomoaki Shiba, Mao Takahashi, Chieko Shiba, Tadashi Matsumoto, Yuichi Hori
To evaluate the relationships between parameters of the pulsatile flow form in the optic nerve head shown by laser speckle flowgraphy (LSFG) and the left ventricular (LV) end-diastolic pressure and mass obtained by echocardiography. We cross sectional analyzed the cases of 175 subjects who had undergone polysomnography. Standard M-mode two-dimensional color Doppler imaging was performed to evaluate the E/e' ratio (which represents the LV end-diastolic pressure) and LV mass. The pulsatile flow form analysis parameters of the blowout score and acceleration time index were evaluated...
June 1, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29858960/a-review-in-enormity-of-oct-and-its-enduring-understanding-of-vulnerable-plaque-in-coronary-bifurcation-lesion
#9
REVIEW
Rajiv Shrestha, Aanchal Shrestha, Jing Kan, Shaoliang Chen
Optical coherence tomography (OCT) has emerged as one of the most promising tools to assist the optimization of percutaneous coronary intervention (PCI). Its ability to provide unique information on the plaque at high risk for rupture, plaque composition, the thickness of the fibrous cap, the presence of macrophage and thrombi has not only assisted simple PCI but also in many complex bifurcation lesions PCI. OCT has helped to provide valuable anatomic information to optimize stent implantation and adapt PCI strategy in individual patients...
June 1, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29850969/brief-cardiovascular-imaging-with-pocket-size-ultrasound-devices-improves-the-accuracy-of-the-initial-assessment-of-suspected-pulmonary-embolism
#10
Dominika Filipiak-Strzecka, Jarosław D Kasprzak, Piotr Lipiec
Pulmonary embolism onset is frequently neglected due to the non-specific character of its symptoms. Pocket-size imaging devices (PSID) present an opportunity to implement imaging diagnostics into conventional physical examination. The aim of this study was to test the hypothesis that supplementation of the initial bedside assessment of patients with suspected pulmonary embolism (PE) with four-point compression venous ultrasonography (CUS) and right ventricular size assessment with the use of PSID equipped with dual probe could positively influence the accuracy of clinical predictions...
May 30, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29846837/comparison-of-quantitative-imaging-parameters-using-cardiovascular-magnetic-resonance-between-cardiac-amyloidosis-and-hypertrophic-cardiomyopathy-inversion-time-scout-versus-t1-mapping
#11
Bo Da Nam, Sung Mok Kim, Hye Na Jung, Yiseul Kim, Yeon Hyeon Choe
To compare inversion time (TI) parameters, native T1, and extracellular volume (ECV) on cardiac magnetic resonance (CMR) imaging between patients with cardiac amyloidosis (CA) or hypertrophic cardiomyopathy (HCMP). Forty six patients with biopsy-confirmed CA and 30 patients with HCMP who underwent CMR were included. T1 and TI values were measured in the septum and cavity of the left ventricle on T1 mapping and TI scout images. TI values were selected at nulling point for each myocardium and blood pool. Native T1, ECV, and TI interval values were significantly different between the CA (1170...
May 30, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29845584/impact-of-different-annuloplasty-rings-on-geometry-of-the-mitral-annulus-with-fibroelastic-deficiency-the-significance-of-aorto-mitral-angle
#12
Wenrui Ma, Wei Ye, Jing Zhang, Wei Zhang, Weihua Wu, Ye Kong
We sought to investigate the impact of full annuloplasty rings versus C-shape bands on mitral annular geometry in the presence of fibroelastic deficiency (FED), as assessed by intraoperative three-dimensional transesophageal echocardiography (3DTEE). We retrospectively selected 65 patients who underwent mitral valve repair for severe mitral regurgitation caused by FED using full rings (the Ring group, n = 30) and C-shape bands (the Band group, n = 35). 71 controls without valvular heart disease were also included...
May 29, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29808387/findings-on-3d-speckle-tracking-echocardiography-in-asymptomatic-methamphetamine-abusers
#13
Li-Juan Zhang, Ke-Qi Chen, Yun-Yan Shi, Xiao-Ling Qiao, Lian-You Wang, Xiao-Zhi Zheng
To detect potential cardiac abnormalities in asymptomatic methamphetamine abusers using three-dimensional speckle tracking echocardiography (3D STE). Fifty-three male methamphetamine abusers, free of cardiac symptoms/signs, were enrolled in this study. A control group of 53 age-matched male normal subjects was studied for comparison. Standard 3D, flow and tissue Doppler echo with measurements of left ventricular end-diastolic volume (LVEDV), end-systolic volume (LVESV), ejection fraction (LVEF), the ratio of the early to late diastolic transmitral filling velocity (E/A), the ratio of the early diastolic transmitral filling velocity to the early diastolic septal tissue velocity (E/E') and 3D STE with measurements of global area strain (GAS), global longitudinal strain (GLS), global circumferential strain (GCS) and global radial strain (GRS) were performed, respectively...
May 28, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29808386/prognostic-value-of-revascularising-viable-myocardium-in-elderly-patients-with-stable-coronary-artery-disease-and-left-ventricular-dysfunction-a-pet-ct-study
#14
Mehdi Namdar, Olivier Rager, Julien Priamo, Angela Frei, Stephane Noble, Gael Amzalag, Osman Ratib, René Nkoulou
Sparse information is available on the role of cardiac viability imaging in elderly patients. We aimed at evaluating the prognostic value of FDG-PET/CT in elderly patients with stable coronary artery disease (CAD) and reduced left ventricular ejection fraction (rLVEF) before revascularisation. Elderly patients (> 65 years old, mean 74 ± 7 years old) with CAD and rLVEF were followed after cardiac FDG-PET/CT and stratified according to presence/absence of viable myocardium and subsequent revascularisation...
May 28, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29802498/quantification-of-coronary-atherosclerotic-burden-with-coronary-computed-tomography-angiography-adapted-leaman-score-in-croatian-patients
#15
Petar Medakovic, Zrinka Biloglav, Ivan Padjen, Ivan Pristas, Mladen Jukic, Franko Zuvela, Gordana Ivanac, Boris Brkljacic, Tena Jukic, Lana Turk
The aim of the study was to quantify the total coronary atherosclerotic burden in patients with suspected coronary artery disease (CAD) defined by coronary computed tomography adapted Leaman score (CT-LeSc) and to estimate its cut-off level for high coronary atherosclerotic burden. We enrolled 434 consecutive patients referred to coronary computed tomography angiography, of which 261 patients fulfilled the study inclusion criteria. Demographic and clinical characteristics, as well as CAD risk factors were obtained...
May 25, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29799064/investigation-of-elastic-features-of-aorta-and-color-m-mode-flow-propagation-velocity-apv-of-descending-aorta-in-the-patients-with-ischemic-and-non-ischemic-dilated-cardiomyopathy
#16
Mesut Gitmez
Aortic flow propagation velocity (APV) is a novel echocardiographic parameter used in coronary artery disease. It has also been used for the evaluation of aortic stiffness. In the present study, APV was measured in patients with ischemic and non-ischemic dilated cardiomyopathy (DCM) and was compared with the parameters of aortic stiffness such as aortic distensibility (AD) and aortic strain (AS). A total of 140 patients who had undergone coronary angiographic imaging were included in the study. Out of these patients, 44 had ischemic DCM, 46 had non-ischemic DCM, and 50 had normal coronary angiography (control group)...
May 24, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29799063/erupted-coronary-atheroma-insights-from-multi-modality-imaging
#17
Ryota Kaichi, Yu Kataoka, Satoshi Yasuda
A 58-year-old gentleman with prolonged chest pain and 20-min ST-segment elevation in inferior lead on Holter monitoring was hospitalized. Multi-slice computed tomography identified severe stenosis with low density area and positive remodeling. Despite the suggestive features of vulnerable lesion, intravascular ultrasound and near-infrared spectroscopy imaging identified ruptured plaque without any lipidic material which were contrary to findings from multi-slice computed tomography. Lipidic materials may travel into coronary circulation following its spontaneous rupture, resulting in zero lipid core burden index...
May 24, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29799062/right-ventricular-function-and-mechanics-in-chemotherapy-and-radiotherapy-na%C3%A3-ve-cancer-patients
#18
Marijana Tadic, Ana Baudisch, Sabine Haßfeld, Frank Heinzel, Cesare Cuspidi, Franziska Burkhardt, Felicitas Escher, Philipp Attanasio, Burkert Pieske, Martin Genger
The present research evaluated right ventricular (RV) structure, function and mechanics in the cancer patients before initiation of chemo- or radiotherapy, and the association between cancer and decreased RV longitudinal strain. This retrospective investigation included 101 chemo- and radiotherapy-naïve patients with solid cancer and 38 age- and gender-matched controls with similar cardiovascular risk profile. Echocardiographic examination and strain evaluation was performed in all participants. RV structure and RV systolic and diastolic function estimated with conventional echocardiographic parameters were similar between the cancer patients and controls...
May 24, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29799061/quantification-of-aortic-stiffness-in-stroke-patients-using-4d-flow-mri-in-comparison-with-transesophageal-echocardiography
#19
Thomas Wehrum, Felix Günther, Miriam Kams, Sarah Wendel, Christoph Strecker, Hanieh Mirzaee, Andreas Harloff
To quantify stiffness of the descending aorta (DAo) in stroke patients using 4D flow MRI and compare results with transesophageal echocardiography (TEE). 48 acute stroke patients undergoing 4D flow MRI and TEE were included. Intima-media-thickness (IMT) was measured in the DAo and the aorta was scrutinized for atherosclerotic plaques using TEE. Stiffness of the DAo was determined by (a) 4D flow MRI at 3 T by calculating pulse wave velocity (PWV) and by (b) TEE calculating arterial strain, stiffness index, and distensibility coefficient...
May 24, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29790037/one-year-optical-coherence-tomography-findings-in-patients-with-late-and-very-late-stent-thrombosis-treated-with-intravascular-imaging-guided-percutaneous-coronary-intervention
#20
Marcos Ñato, Josep Gomez-Lara, Rafael Romaguera, Gerard Roura, José Luis Ferreiro, Luis Teruel, Montserrat Gracida, Lara Fuentes, Bert Vandeloo, Joan-Antoni Gomez-Hospital, Angel Cequier
Patients with late/very-late stent thrombosis (ST) are at high risk of recurrent-ST. The mechanisms of recurrent-ST are largely unknown. The objective is to describe the 1-year optical coherence tomography (OCT) findings of patients suffering from late/very-late ST treated with intravascular imaging guided percutaneous coronary intervention (PCI). All consecutive patients with late/very-late ST undergoing intravascular imaging guided PCI were screened to undergo coronary angiography and OCT examination at 1 year...
May 22, 2018: International Journal of Cardiovascular Imaging
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