PD24-01 PROOF-OF-CONCEPT FOR DATA FUSION OF URETHRAL PRESSURE DATA AND MRI
PD24-01 PROOF-OF-CONCEPT FOR DATA FUSION OF URETHRAL PRESSURE DATA AND MRI
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PD24-01 尿道压力数据和 MRI 数据融合的概念验证
DOI：
10.1016/j.juro.2015.02.1456
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Ederer M
中科院分区：
文献类型：
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作者：
Klünder M;Will S;Sievert KD;Amend B;Feuer R;Sawodny O;Kramer U;Stenzl A;Ederer M
方法：在对镇静雌性小型猪的测量过程中，使用带有总共9个压力传感器和一个加速度传感器的微尖端导管原型来确定导管的方向。通过特殊的信号重建算法对UPP数据进行处理，以获得尿道内的空间压力分布。在另一只雌性小型猪中，在3 T MR扫描仪中进行MRI，切片与尿道正交放置。放大的图像被锐化和着色以获得更好的对比度。最后，使用Matlab®进行两个数据集的融合。以切片厚度间隔堆叠TSMRI图像。在MRI和UPP数据中识别并对齐膀胱颈。通过导管的加速度传感器，精确定位UPP数据（例如，UPP数据中的背侧与MRI中的背侧对齐）。3D图可以自由旋转，使医生可以获得详细了解尿道周围的解剖结构（MRI）和相应的3D-UPP.CONCLUSIONSMRI图像堆叠在切片厚度的间隔。在MRI和UPP数据中识别并对齐膀胱颈。通过导管的加速度传感器，精确定位UPP数据（例如，UPP数据中的背侧与MRI中的背侧对齐）。3D图可以自由旋转，以便医生可以详细了解尿道周围的解剖结构（MRI）和相应的内部压力分布（UPP）。download PPT
METHODSA microtip catheter prototype was used with a total of 9 pressure sensors and an acceleration sensor to determine the orientation of the catheter during the measurement on a sedated female minipig. The UPP data was processed through a special signal reconstruction algorithm to obtain the spatial pressure distribution inside the urethra. In another female minipig, which underwent MRI in a 3T MR scanner, slices were placed orthogonally with the urethra. The enlarged images were sharpened and colored for better contrast. Finally, fusion of both datasets was carried out using Matlab®.RESULTSMRI images were stacked at slice thickness intervals. The bladder neck was identified and aligned in both MRI and UPP data. Through the catheter's acceleration sensor, UPP data was precisely oriented,(eg the dorsal side in UPP data aligned with the dorsal side in MRI). The 3D-plot can be freely rotated so that the physician can attain a detailed understanding of both the anatomy around the urethra (MRI) and the corresponding 3D-UPP.CONCLUSIONSMRI images were stacked at slice thickness intervals. The bladder neck was identified and aligned in both MRI and UPP data. Through the catheter's acceleration sensor, UPP data was precisely oriented,(eg the dorsal side in UPP data aligned with the dorsal side in MRI). The 3D-plot can be freely rotated so that the physician can attain a detailed understanding of both the anatomy around the urethra (MRI) and the corresponding pressure distribution inside (UPP). Download PPT