Comparison of unenhanced and contrast-enhanced 3 T magnetic resonance portovenography in children with extra hepatic portal venous obstruction

Kumar Abhinandan; Saxena Akshay Kumar; Bhatia Anmol; Lal Sadhna; Rana Pratyaksha; Bawa Monika; Sodhi Kushaljit Singh

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Comparison of unenhanced and contrast-enhanced 3 T magnetic resonance portovenography in children with extra hepatic portal venous obstruction

机译：额外肝门廊静脉阻塞儿童未加入和对比增强3 T磁共振术的比较

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Purpose To evaluate role of 3-T magnetic resonance portovenography (MRPV) in children with extra hepatic portal venous obstruction (EHPVO) and compare unenhanced and contrast-enhanced sequences. Methods 20 Children with EHPVO underwent MRPV using unenhanced [T2, T1 pre-contrast, Balanced turbo field echo (BTFE)] and contrast-enhanced (CE) modified DIXON (mDIXON) sequences. The images were evaluated for the patency of abdominal veins, hepatic and splenic parenchyma by two radiologists for interobserver agreement. Results BTFE and post-contrast mDIXON sequences performed best for evaluation of abdominal veins. Concordance between the BTFE and CE sequences was good to very good for both the radiologists for splenic vein (SV) evaluation. The concordance between the two sequences for evaluation of superior mesenteric vein and its confluence with the SV was less remarkable and varied from fair to good, while the interobserver agreement was very good to perfect. The interobserver agreement between the BTFE and CE sequence for the evaluation of left renal vein was very good, while that for IVC was perfect. The agreement between BTFE and CE sequence was perfect for the evaluation of right and middle hepatic veins, while the interobserver agreement was good to perfect. The interobserver agreement was poor for evaluation of hepatic parenchyma on BTFE sequence as compared to CE sequence, and moderate for splenic parenchyma. Conclusion BTFE sequence is the single best unenhanced MR pulse sequence to detect all the vascular structures in children with EHPVO. CE-MRI is not superior to BTFE sequence and should be used at the discretion of the radiologist.

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来源
《Abdominal radiology.》 |2021年第8期|共10页
作者
Kumar Abhinandan; Saxena Akshay Kumar; Bhatia Anmol; Lal Sadhna; Rana Pratyaksha; Bawa Monika; Sodhi Kushaljit Singh;
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作者单位

Postgrad Inst Med Educ &

Res Dept Radiodiag &

Imaging Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Radiodiag &

Imaging Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Radiodiag &

Imaging Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Pediat Gastroenterol Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Radiodiag &

Imaging Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Pediat Surg Chandigarh India;

Postgrad Inst Med Educ &

Res Dept Radiodiag &

Imaging Chandigarh India;

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原文格式 PDF
正文语种 eng
中图分类内科学;
关键词
EHPVO; Children; MRI; MRPV;

机译：EHPVO;儿童;MRI;MRPV;

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Comparison of unenhanced and contrast-enhanced 3 T magnetic resonance portovenography in children with extra hepatic portal venous obstruction

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