Oblique coronal position-maximum intensity projection and volume rendering reconstructed CT portal vein angiography for diagnosing spleen/stomach-left kidney shunt
10.13929/j.issn.1672-8475.2025.01.007
- VernacularTitle:斜冠状位最大密度投影及容积再现重建CT门静脉血管成像用于诊断脾/胃-左肾分流
- Author:
Lin DENG
1
;
Ping LIANG
;
Zhongkui HUANG
;
Dingjiao ZHU
;
Gengrui CHEN
Author Information
1. 北海市人民医院放射科,广西 北海 536000
- Publication Type:Journal Article
- Keywords:
portal vein;
computed tomography angiography;
spleno-renal shunt;
gastric renal shunt
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(1):32-36
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of oblique coronal position-maximum intensity projection(OC-MIP)and volume rendering(VR)reconstructed CT portal vein angiography(CTPA)for diagnosing spleen/stomach-left kidney shunt(S/sLKS).Methods A total of 62 patients with decompensated liver cirrhosis who underwent TIPS were retrospectively collected.Based on pre-TIPS enhanced portal vein stage CT,CTPA was reconstructed with OC-MIP and VR technology to diagnose S/sLKS and judging the types.Taken digital subtraction angiography(DSA)findings during TIPS treatment as standards,the efficacy of OC-MIP or VR images for diagnosing S/sLKS were evaluated,and their consistency with DSA for diagnosing S/sLKS were evaluated.Results DSA showed S/sLKS in 14 cases(14/62,22.58%),while no S/sLKS in 48 cases(48/62,77.42%).The sensitivity,specificity and accuracy of OC-MIP and VR images for diagnosing S/sLKS were all consistent,which was 92.86%(13/14),95.83%(46/48)and 95.16%(59/62),respectively.OC-MIP and VR images diagnosed S/sLKS were both consistent with that of DSA(both Kappa=0.865).Among 14 cases of S/sLKS,DSA showed spleen-renal shunt(SRS)and gastro-renal shunt(GRS)each in 1 case(1/14,7.14%),spleen-stomach-renal shunt(SsRS)in 7 cases(7/14,50.00%),both SRS and GRS(SRS&GRS)in 4 cases(4/14,28.57%)and SRS&GRS+SRS dual shunt in 1 case(1/14,7.14%).OC-MIP and VR images did not show the shunt of GRS in 1 case.Among 4 cases of SRS&GRS,DSA showed 1 small branch of splenic vein(SPV)each in 2 cases,while OC-MIP and VR images did not show.The findings of OC-MIP and VR images for source veins were consistent with DSA in the other cases.Conclusion OC-MIP and VR reconstructed CTPA had high clinical value for diagnosing S/sLKS.
