Special aspects of coronary veins scanning by computer tomography

Authors: Shlyappo M.A., Aleksandrova S.A., Yurpol’skaya L.A., Makarenko V.N., Bockeria L.A.

Company: Bakoulev National Scientific and Practical Center for Cardiovascular Surgery of Ministry of Health of the Russian Federation, Rublevskoe shosse, 135, Moscow, 121552, Russian Federation

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Type:  New diagnostic techniques in cardiology


DOI: https://doi.org/10.24022/1997-3187-2017-11-2-137-144

For citation: Shlyappo M.A., Aleksandrova S.A., Yurpol’skaya L.A., Makarenko V.N., Bockeria L.A. Special aspects of coronary veins scanning by computer tomography. Kreativnaya kardiologiya (Creative Cardiology, Russian journal). 2017; 11 (2): 137-44 (in Russ.). DOI: http://dx.doi.org/10.24022/1997-3187-2017-11-2-137-144

Received / Accepted:  June 01, 2017 / June 09, 2017

Keywords: multidetector computer tomography coronary sinus coronary venous flow coronary veins

Full text:  

 

Abstract

Objective. Searching an optimal scanning protocol of the coronary veins on the computer tomography.

Material and methods. Our research included 80 studies, divided into three groups in accordance with changes in the standard protocol of CT angiography. The group 1 (control) consisted of 25 retrospective studies of CT coronary arteries. The group 2 consists of prospective 15 coronary artery investigations with an increased threshold in the bolus-tracking and added second scan phase. The group 3 included 40 prospective studies of patients referred to CT of pulmonary veins. In the group 3, the bolus tracking threshold was lowered, the bolus tracking area was changed, and the contrast drug was introduced. We determined the time delay of the start scanning in the arterial and venous phase, and the density of contrast in the coronary sinus. Besides, we conducted a qualitative analysis on visualization of the main heart veins along the length.

Results. The time delay of the start scanning the arterial phase was significantly different in the groups 2 and 3 as compare control group. However, there were not differences between the time delay of scanning in the groups 2 and 3. Scanning of the venous phase in the groups 2 and 3 was in the same time. The average density of blood in coronary sinus in the arterial phase was not significantly different in the three groups (p > 0.05). Statistically significant differences between the groups 2 and 3 were not obtained in the venous phase (p >0.05). However, the qualitative analysis of veins visualization showed significant differences between the groups. In the 3 group, the coronary veins were noted better, which was associated with a two-step injection of contrast.

Сondusion. The usage of a standard protocol CT scan of the coronary arteries with adding biphasic sequential injection of contrast agent and additional scanning in the venous phase allows to obtain high-quality images of the venous bed of the heart along the length.

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About Authors

  • Shlyappo Mariya Aleksandrovna, Postgraduate;
  • Aleksandrova Svetlana Aleksandrovna, Cand. Med. Sc., Senior Researcher;
  • Yurpol’skaya Lyudmila Anatol’evna, Dr Med. Sc., Leading Researcher;
  • Makarenko Vladimir Nikolaevich, Dr Med. Sc., Professor, Head of Department; Bockeria Leo Antonovich, Academician of Russian Academy of Sciences and Russian Academy of Medical Sciences, Director

Chief Editor

Leo A. Bockeria, MD, PhD, DSc, Professor, Academician of Russian Academy of Sciences, President of Bakoulev National Medical Research Center for Cardiovascular Surgery