Shiotani Seiji, Kohno Mototsugu, Ohashi Noriyoshi, Yamazaki Kentaro, Nakayama Hidetsugu, Watanabe Ko, Itai Yuji
Department of Radiology, Tsukuba Medical Center Hospital, Ibaraki, Japan.
Radiat Med. 2003 Jan-Feb;21(1):29-35.
To delineate cardiac structures on postmortem computed tomography (PMCT) and quantitatively to prove dilatation of the heart after death.
Our subjects were 50 PMCT of non-traumatic deaths and 50 CT of living persons (live CT). We measured maximal and minimal diameters of the superior vena cava (SVC) at three levels (upper, middle, and lower), the inferior vena cava (IVC), pulmonary artery (PA), pulmonary vein (PV), right atrium (RA), and left atrium (LA). Then the product of maximal by minimal diameter and the eccentricity were calculated.
The maximal and minimal diameters of the heart were significantly longer than those on live CT except for 1) the maximal diameter of the SVC at the upper level and 2) the maximal diameter of the PA. All of the products of maximal by minimal diameter on PMCT were significantly larger than those on live CT. All of the eccentricities decreased significantly after death except LA.
The heart is dilated on PMCT, and the right side of it dilates toward a round shape.
在尸体计算机断层扫描（PMCT）上描绘心脏结构，并定量证明死后心脏扩张。
我们的研究对象为50例非创伤性死亡的PMCT和50例活体CT（活CT）。我们在三个水平（上、中、下）测量上腔静脉（SVC）、下腔静脉（IVC）、肺动脉（PA）、肺静脉（PV）、右心房（RA）和左心房（LA）的最大和最小直径。然后计算最大直径与最小直径的乘积以及偏心率。
除1）上腔静脉上水平的最大直径和2）肺动脉的最大直径外，心脏的最大和最小直径明显长于活CT上的直径。PMCT上所有最大直径与最小直径的乘积均显著大于活CT上的乘积。除左心房外，死后所有偏心率均显著降低。
PMCT上心脏扩张，其右侧向圆形扩张。
