Rifkin M D
J Ultrasound Med. 1985 Jan;4(1):1-5. doi: 10.7863/jum.1985.4.1.1.
Transrectal ultrasound probes can image the prostate only in a single plane. A retrospective study was undertaken to evaluate the capabilities and differences of longitudinal and transversely oriented images obtained from transrectal sonographic examinations. The patients were studied by both modalities using commercially available machines. Comparisons of the images demonstrated that the transverse image yielded more information about the lateral margins of the prostate; the longitudinal image showed the apex and base more clearly; prostatic calculi, which can be confused with other pathologic processes, were more accurately identified by the longitudinal scanners; and both techniques adequately demonstrated the abnormality, particularly cancer, although some lesions were seen better on either one or the other orientation. Either scanner can be used for a satisfactory study, but both methods may have to be utilized to conduct a thorough evaluation of the prostate and surrounding structures.
经直肠超声探头只能在单一平面成像前列腺。进行了一项回顾性研究，以评估经直肠超声检查获得的纵向和横向图像的能力及差异。使用市售机器通过两种方式对患者进行研究。图像比较显示，横向图像可提供更多关于前列腺外侧缘的信息；纵向图像能更清晰地显示前列腺尖部和底部；纵向扫描器能更准确地识别可能与其他病理过程混淆的前列腺结石；两种技术都能充分显示异常情况，尤其是癌症，尽管有些病变在某一方向上显示得更好。两种扫描器都可用于进行令人满意的研究，但可能必须同时使用两种方法才能对前列腺及周围结构进行全面评估。
