Comparison of the Five Different Methods in Arterial Diameter Measurement
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Abstract
Background/Aims: In this study, the different types of arterial diameter measurement methods were com-pared with each other on rat model. Methods: The study was planned in three phases. In phase 1, all subjects (n = 30) underwent high resolution B-mode ultrasound examination and external diameter of the right com-mon carotid artery (RCCA) was measured. In phase 2, RCCA was explored. In phase 3, rats were put into three groups. Group 1 was kept at -20<sup>o</sup>C, group 2 was embedded in 4% formaldehyde solution. In group 3, circulatory system was filled with %20 latex solution. In all groups, digital image of the RCCA was taken after the processes mentioned above. Images were assessed by Image – Pro Plus software. Results: The greatest average diameter was observed in the high resolution B-mode ultrasound (phase 1). In group 1 and 2, direct measurement of the RCCA on living animal (phase 2) gave significantly wider diameter than those obtained at phase 3 in the same groups. Direct (phase 2) and latex (phase 3) measurements were equal in group 3. Conclusion: High resolution B-mode ultrasound gives larger, probably actual diameter of the artery. Latex injection results might correspond those encountered during operation.
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