Bandi Peter, Zsoter Norbert, Wirth Andras, Luetzen Ulf, Derlin Thorsten, Papp Laszlo
Mediso Medical Imaging Systems Ltd., Baross str. 91-95, H-1047 Budapest, Hungary.
Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:5971-4. doi: 10.1109/EMBC.2012.6347354.
Gold standard bone scintigraphy workflow contains acquisition of planar anterior and posterior images and if necessary, additional SPECTs as well. Planar acquisitions are time consuming and not enough for accurately locating hotspots. Current paper proposes a novel workflow for fast whole body bone SPECT scintigraphy. We present a novel stitching method to generate a whole body SPECT based on the SPECT projections. Our stitching method is performed on the projection series not on the reconstructed SPECTs, thus stitching artifacts are greatly reduced. Our workflow does not require any anterior-posterior image pairs, since these images are derived from the reconstructed whole body SPECT automatically. Our stitching method has been validated on real clinical data performed by medical physicians. Results show that our method is very effective for whole body SPECT generations leaving no signs of artifacts. Our workflow required overall 16 minutes to acquire a whole body SPECT which is comparable to the 60 minutes acquisition time required for gold standard techniques including planar images and additional SPECT acquisitions.
金标准骨闪烁扫描流程包括采集前后位平面图像，必要时还需进行额外的单光子发射计算机断层扫描（SPECT）。平面图像采集耗时且不足以精确定位热点。当前论文提出了一种用于快速全身骨SPECT闪烁扫描的新流程。我们提出了一种基于SPECT投影生成全身SPECT的新拼接方法。我们的拼接方法是在投影序列上执行的，而不是在重建的SPECT上，因此大大减少了拼接伪影。我们的流程不需要任何前后位图像对，因为这些图像是自动从重建的全身SPECT中获取的。我们的拼接方法已在医学医生进行的真实临床数据上得到验证。结果表明，我们的方法对于生成全身SPECT非常有效，没有留下任何伪影迹象。我们的流程获取全身SPECT总共需要16分钟，这与包括平面图像和额外SPECT采集在内的金标准技术所需的60分钟采集时间相当。
