Mlynarski Rafal, Mlynarska Agnieszka, Stasiow Bartłomiej
Department of Electrocardiology and Heart Failure, School of Health Sciences, Medical University of Silesia, Katowice, Poland.
Department of Electrocardiology, Upper Silesian Heart Centre, Katowice, Poland.
Clin Physiol Funct Imaging. 2021 Mar;41(2):192-198. doi: 10.1111/cpf.12685. Epub 2020 Dec 19.
Currently, there are no studies that analyse the changes in the cardiac venous system that are dependent on the phase (RR interval) of reconstruction. The aim of the study was to assess the size of the coronary sinus at two measurement sites depending on the phase of the heart cycle.
Fifty patients were included. Cardiac computed tomography was performed in all of the patients due to a suspicion of coronary artery disease (typical indications) using a dual-source Siemens Somatom Force scanner. The "MM reading" presets were used to measure the coronary sinus ostium (measurement 1) and the coronary sinus trunk, which is close to the great cardiac vein (measurement 2) in millimetres. All of the calculations were performed on axial scans using 0%-100% and a 256 × 256 matrix.
The largest CS was found at the 30%, 40% and 50% RR interval-this phenomenon occurred in 37 of the 50 cases (74%). The CS was largest in the 30% phase (9/50 cases; 18%), in the 40% phase (17/50 cases; 34%) and in the 50% phase, and it was the largest in 11 of the 50 cases (22%). There were also no gender-related differences.
The size of the coronary sinus varies with the phase of the heart cycle. At the 40% phase, it is largest in most cases.
目前，尚无研究分析依赖于重建阶段（RR间期）的心脏静脉系统变化。本研究的目的是根据心动周期阶段评估两个测量部位的冠状窦大小。
纳入50例患者。由于怀疑患有冠状动脉疾病（典型指征），所有患者均使用双源西门子Somatom Force扫描仪进行心脏计算机断层扫描。使用“MM读数”预设以毫米为单位测量冠状窦口（测量1）和靠近心大静脉的冠状窦主干（测量2）。所有计算均在轴向扫描上使用0%-100%和256×256矩阵进行。
在RR间期的30%、40%和50%时发现冠状窦最大——这种现象发生在50例中的37例（74%）。冠状窦在30%阶段最大（9/50例；18%），在40%阶段最大（17/50例；34%），在50%阶段最大，50例中有11例（22%）在此阶段冠状窦最大。也不存在性别差异。
冠状窦的大小随心动周期阶段而变化。在40%阶段，大多数情况下它最大。
