Wilson L S, Neale M L, Talhami H E, Appleberg M
Ultrasonics Laboratory, CSIRO, NSW, Australia.
Ultrasound Med Biol. 1994;20(6):529-42. doi: 10.1016/0301-5629(94)90089-2.
Excised femoral and iliac artery segments have been examined with 20 MHz intravascular ultrasound followed by histological assessment. During the ultrasound examinations, radio-frequency (RF) data were recorded digitally, and used for calculating local values of attenuation slope throughout the tissue, using a frequency-domain technique. The RF data were also reconstructed as conventional ultrasound images, and the attenuation-slope information presented as a threshold colour overlay. Areas identified as degenerative plaque in the histological assessments were usually found to correspond to areas of high attenuation slope, and were clearly identified from the pattern of colours on the combined image. Some examples are presented, illustrating the appearance of various pathologies imaged by this technique.
已使用20兆赫血管内超声对切除的股动脉和髂动脉节段进行检查，随后进行组织学评估。在超声检查期间，射频（RF）数据被数字记录，并使用频域技术用于计算整个组织的衰减斜率局部值。RF数据还被重建为传统超声图像，并且衰减斜率信息以阈值颜色叠加的形式呈现。在组织学评估中被鉴定为退行性斑块的区域通常被发现与高衰减斜率区域相对应，并且从组合图像上的颜色模式中可以清楚地识别出来。给出了一些示例，说明了通过该技术成像的各种病变的外观。
