Three-dimensional renal CT angiography for guiding segmental renal artery clamping during laparoscopic partial nephrectomy
| Autor: | Guangyu Yang, Xiaomei Zhu, Yi Xu, Yinsu Zhu, Lijun Tang, Changjun Yin, Qiang Lv, Hai Xu, Pengfei Shao, Wangyan Liu |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Iohexol medicine.medical_treatment Arteriogram Contrast Media Nephrectomy Constriction Imaging Three-Dimensional Renal Artery Image Processing Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging In patient Aged Retrospective Studies Computed tomography angiography Aged 80 and over medicine.diagnostic_test business.industry General Medicine Middle Aged Radiographic Image Enhancement Angiography Segmental renal artery Female Laparoscopy Radiology Tomography Tomography X-Ray Computed business |
| Zdroj: | Clinical Radiology. 68:e609-e616 |
| ISSN: | 0009-9260 |
| Popis: | Aim To evaluate the effectiveness of three-dimensional (3D) renal computed tomography angiography (CTA) in guiding segmental renal artery clamping during laparoscopic partial nephrectomy (LPN). Materials and methods Forty-three patients with renal tumours undergoing renal CTA before LPN were retrospectively enrolled in this study. 3D arteriogram reconstructed images were created to identify the renal tumour-supplying arteries. The number and location of these targeted vessels were annotated on 3D images preoperatively and compared with the clamped vessels during LPN. The consistency between target vessels annotated at CTA and clamped arteries at LPN was compared both using a patient-based analysis and vessel-based analysis. The χ2 test was applied to analyse the influence of tumour size, location, and growth pattern on the number of clamped segmental renal branches. Results On patient-based analysis, the number of targeted vessels was consistent with the clamped vessels during LPN in 33 of 43 patients. On vessel-based analysis, 56 of 65 target vessels annotated at CTA were clamped during LPN. More segmental renal branches (p = 0.04) were clamped in patients with tumours of larger size. Tumour location and growth pattern had no association with the number of clamped segmental branches during LPN. Conclusion High-quality CTA images and 3D reconstruction images can detect detailed information of tumour-supplying arteries to renal tumours. 3D renal CTA is an effective way to guide segmental renal artery clamping during LPN. |
| Databáze: | OpenAIRE |
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