犬急性水肿型胰腺炎MRI多序列扫描及增强扫描的影像特征

doi:10.11843/j.issn.0366-6964.2023.11.031

畜牧兽医学报 ›› 2023, Vol. 54 ›› Issue (11): 4777-4785.doi: 10.11843/j.issn.0366-6964.2023.11.031

犬急性水肿型胰腺炎MRI多序列扫描及增强扫描的影像特征

袁悦¹, 何楚桥¹, 舒棕涛¹, 史超颖², 李晓坤³, 杨德吉^1*, 姚大伟^1*

1. 南京农业大学动物医学院兽医影像诊断中心, 南京 210095;
2. 新瑞鹏宠物医疗集团艾贝尔宠物医院, 南京 210036;
3. 新瑞鹏宠物医疗集团维特动物医院, 深圳 518000

收稿日期:2023-02-15 出版日期:2023-11-23 发布日期:2023-11-26
通讯作者: 杨德吉,主要从事兽医影像诊断技术研究,E-mail:djyang@njau.edu.cn;姚大伟,主要从事动物影像学等研究,E-mail:yaodawei@njau.edu.cn
作者简介:袁悦(1991-),女,广东深圳人,博士生,主要从事MRI影像诊断技术研究,E-mail:2515112826@qq.com
基金资助:
深圳市瑞鹏公益基金会与新瑞鹏宠物医疗集团有限公司共同资助高校青年教师(小动物临床)科研基金(RPJJ2020018);中央高校基本科研业务费项目(KYYJ202104)

Imaging Manifestations of Multi-Sequence Scanning and Enhanced Magnetic Resonance Imaging in Acute Edematous Pancreatitis in Canines

YUAN Yue¹, HE Chuqiao¹, SHU Zongtao¹, SHI Chaoying², LI Xiaokun³, YANG Deji^1*, YAO Dawei^1*

1. Diagnostic Imaging Center of Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China;
2. New Ruipeng Pet Healthcare Group, Ai-Bi Pet Hospital, Nanjing 210036, China;
3. New Ruipeng Pet Healthcare Group, IVC Shenzhen Animal Hospital, Shenzhen 518000, China

Received:2023-02-15 Online:2023-11-23 Published:2023-11-26

摘要/Abstract

摘要： 探究犬胰腺磁共振成像(magnetic resonance imaging,MRI)扫描序列总结归纳犬急性水肿型胰腺炎(acute edematous pancreatitis,AEP)的MRI影像表现。选用10只成年本地杂种犬为研究对象,手术经副胰管逆行注入牛磺胆酸钠与胰蛋白酶混合液建立犬急性水肿型胰腺炎模型,然后进行MRI扫描。MRI多序列扫描图像主观与客观分析结果显示,门控采集快速自旋回波T2加权成像(FSE-T2WI-TRIG)序列与门控采集脂肪抑制快速自旋回波T2加权成像(FSE-T2WI-FS-TRIG)序列评分较高,可作为犬胰腺首选MRI扫描序列,必要时可进行造影增强扫描。FSE-T2WI-TRIG、FSE-T2WI-FS-TRIG序列AEP表现为胰腺体积呈弥散性增大,外形不规则,胰腺实质T2WI信号呈不均匀增高,强度高于同层肝组织信号。胰腺与周围脂肪界限稍有不清,胰腺周围伴有渗出,呈条片状T2WI高信号。造影后胰腺实质不均匀强化,平均强化峰值时间为注射造影剂后60~90 s,存在明显延迟强化。研究结果表明,本研究筛选的MRI扫描序列可用于临床上犬AEP的检查,同时AEP的MRI影像表现可为临床上犬AEP的诊断提供重要的依据。

关键词: 犬急性水肿型胰腺炎, 磁共振成像, 多序列扫描, 增强扫描

Abstract: To investigate the magnetic resonance imaging (MRI) characteristic of acute edematous pancreatitis (AEP) in canines, ten local adult canines were used to establish AEP models by sodium taurocholate and trypsin retrograde perfusion. MRI was performed before and after perfusion. FSE-T2WI-TRIG and FSE-T2WI-FS-TRIG images preferred best for subjective and objective analysis through MRI multi-sequence scanning and contrast enhanced scans can be performed if necessary. Pancreas was found diffuse enlargement with an irregular shape. Pancreatic parenchyma was also found hyperintense uneven signal and high signal was found compared with the same liver layer in T2WI. With extracellular fluid surrounding and irregular pancreatic margins, hyperintense stripe signal was also found in T2WI. The Gad-enhanced images showed inhomogeneous enhancement in pancreas parenchyma of AEP canines, and the average enhancement peak time was 60-90 s after injection of Gad medium delayed enhancement was found. Our research integrated these selected sequences can be used for clinical examination of AEP canines. MRI characteristic of AEP canines provided important reference for the diagnosis of AEP canines.

Key words: acute edematous pancreatitis in canines, magnetic resonance imaging, multi-sequence scanning, enhancement scan

中图分类号:

S854.7

袁悦, 何楚桥, 舒棕涛, 史超颖, 李晓坤, 杨德吉, 姚大伟. 犬急性水肿型胰腺炎MRI多序列扫描及增强扫描的影像特征[J]. 畜牧兽医学报, 2023, 54(11): 4777-4785.

YUAN Yue, HE Chuqiao, SHU Zongtao, SHI Chaoying, LI Xiaokun, YANG Deji, YAO Dawei. Imaging Manifestations of Multi-Sequence Scanning and Enhanced Magnetic Resonance Imaging in Acute Edematous Pancreatitis in Canines[J]. Acta Veterinaria et Zootechnica Sinica, 2023, 54(11): 4777-4785.

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犬急性水肿型胰腺炎MRI多序列扫描及增强扫描的影像特征

Imaging Manifestations of Multi-Sequence Scanning and Enhanced Magnetic Resonance Imaging in Acute Edematous Pancreatitis in Canines

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