Sir Syed University of Engineering & Technology, Karachi, Pakistan.
Comput Math Methods Med. 2013;2013:890170. doi: 10.1155/2013/890170. Epub 2013 Mar 31.
The ultrasound imaging has the potential to become a dominant technique for noninvasive therapies and least invasive surgeries. Few cases may require using multiple probes of different units with different modes of ultrasound on the same patient. It generates imaging artifacts, which makes it complicated to gather information from the acquired image. This study was to identify and analyse the artifacts which are produced by simultaneous use of two probes with different/same operating frequencies. Six imaging studies were performed. First of all, the imaging artifacts of the 3.5 MHz and 6 MHz center frequencies with similar (longitudinal) positions of the probes. Secondly, with similar operating frequencies the 6 MHz probe changed from longitudinal to transverse placement to analyse the resulting artifacts. The third study was done with transverse placement of 3.5 MHz probe. The rest of the three cases were just the repetition with common pulse frequencies. Such artifacts in 3D ultrasound images are more obscure than the other artifacts associated and reported.
超声成像是一种很有潜力的非侵入性治疗和微创手术技术。在某些情况下，可能需要在同一患者身上使用不同单位、不同模式的多个探头。这会产生成像伪影，从而使得从获取的图像中收集信息变得复杂。本研究旨在识别和分析同时使用两个具有不同/相同工作频率探头产生的伪影。进行了六项成像研究。首先，研究了探头中心频率为 3.5MHz 和 6MHz、位置相似（纵向）时产生的成像伪影。其次，在具有相似工作频率的情况下，将 6MHz 探头从纵向放置改为横向放置，以分析产生的伪影。第三项研究是使用 3.5MHz 探头进行横向放置。其余三个案例只是使用常见脉冲频率的重复。与其他相关和报告的伪影相比，3D 超声图像中的此类伪影更为模糊。
