TY  - JOUR
T1  - Assesment of the heart volume using computerized tomography and magnetic resonance imaging
AU  - Ozdemır, Fikri
AU  - Mazonakıs, Micheal
AU  - Sahın, Bunyamin
AU  - Elfakı, Amani
AU  - Yılmaz, Ozcan
AU  - Selcuk, Mustafa Bekir
PY  - 2014
DA  - September
DO  - 10.5835/jecm.v2i31.5000068757
JF  - Deneysel ve Klinik Tıp Dergisi
JO  - J. Exp. Clin. Med.
PB  - Ondokuz Mayıs University
WT  - DergiPark
SN  - 1309-4483
SP  - 0
VL  - 31
IS  - 2
LA  - en
AB  - Heart volume along with dose volume histograms are essential in reducing pulmonaryand cardiac complications. The aim of this study is to measure the ventricular volumeusing computerized tomography (CT) and magnetic resonance imaging (MRI), to detectthe differences between the two scans and to investigate whether the estimated volumesconcur with the actual volume of the hearts obtained by the fluid displacement technique.The present study were performed in six heart sheep. Hearts were scanned in thehorizontal plane using CT (Toshiba, Aquilion, Japan) and MR machine (Siemens 1.5TAvanto, Germany), we decided for 1 mm as sample thickness fraction for both MR andCT images.The images were analyzed using Image software. Planimetry and thresholdstereological methods were applied to estimate the ventricular volume. To evaluate theaccuracy of two scans, all the estimates were done by the same observer. The actual heartsmean volumes were 109.38 cm3±17.77. The mean volume of the hearts in CT images ofdifferent thickness (0.94, 1.94, 2.94, 3.94 and 4.94 mm) were 110.34 cm3±17.63, 110.61cm3±17.70, 111.03 cm3±17.65, 111.48 cm3±17.68 and 112.18 cm3±17.86, respectively.The mean volume of the hearts in MRI of different thickness (1.1, 2.1, 3.1, 4.1 and 5.1mm) were 103.78 cm3±17.60, 104.12 cm3±17.91, 104.31 cm3±17.89, 104.41 cm3±17.84and 104.56 cm3±17.95, respectively. There were significant statistical difference betweenthe mean volume of the actual hearts and mean volume of the hearts in CT and MRI(p<0.05). CT and MRI datasets allowed an interchangeable utilization of volumetric analysistools, MRI demonstrated a significant reduction in the ventricular volume, whileCT provides accurate volumetric information of the ventricles in comparison withactualhearts volume. However, reliable volumetric analysis was limited to an optimal range ofcardiac rates for each modality.
KW  - Computarized tomography image; magnetic resonance image; threshold; planimetry; ventricular volume
UR  - https://doi.org/10.5835/jecm.v2i31.5000068757
L1  - https://dergipark.org.tr/en/download/article-file/190423
ER  -