Interpretation of multi-detector computed tomography images beforedissection may allow detection of vascular anomalies

通过解剖前解读CT图像，检测到右锁骨下动脉异常。随后对尸体进行解剖，证实该异常是右锁骨下动脉，作为主动脉弓的最后一个分支。我们还通过解剖发现了右侧椎动脉的异常起源。该异常在CT图像上也可见，尽管在第一次判读中未被识别。目前的结果表明，分支异常的动脉直径超过1厘米的CT图像上检测，即使没有注射造影剂。因此，CT扫描捐赠的尸体和介绍的CT图像从尸体到大体解剖实验室可能是非常有用的，更好地了解人体结构的医学生。

By interpreting CT images before dissection, an anomaly of the right subclavian artery was detected. The anomaly was verified to be the right subclavian artery as the last branch of the aortic arch by subsequent dissection of the cadaver. We also identified an anomalous origin of the right vertebral artery by dissection. This anomaly was also visible on CT images, although it had not been recognized in the first interpretation. The present results suggest that branching anomalies of arteries which have a diameter of more than 1 cm are detectable on CT images even without injection of contrast medium. Thus, CT scanning of donated cadavers and introduction of CT images from the cadavers to gross anatomy laboratories might be very useful for better understanding of human body structure by medical students.