Keywords:
Cardiac Assist Devices, Blood, Computer Applications-3D, MR-Angiography, MR, Cardiovascular system, Cardiac, Anatomy
Authors:
M. Shlyappo, S. Alexandrova, L. A. Yurpolskaya, V. Makarenko; Moscow/RU
DOI:
10.1594/ecr2018/C-0130
Methods and materials
Our research included 80 studies,
divided into three groups in accordance with changes in the standard protocol of CT angiography.
The control group (the first) consisted of 25 retrospective studies of CT coronary arteries.
The second group consists of prospective 15 coronary artery investigations with an increased threshold in the bolus-tracking and added second scan phase.
The third group included 40 prospective studies of patients referred to CT of pulmonary veins.
In the third group,
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.