Japanese
English
- 有料閲覧
- Abstract 文献概要
- 1ページ目 Look Inside
- 参考文献 Reference
要旨●年々増加傾向にあるIBD患者の診療では,客観的かつ詳細な病態評価により最適な治療法を選択することが求められている.Crohn病では,腸管および腸管外の病変をより詳細に評価できるCT enterographyが小腸病変だけではなく,大腸病変の描出にも有効である.CT colonographyは潰瘍性大腸炎において,仮想注腸像(AI)における腸管の伸展性低下,ハウストラの消失,MPR像における腸管壁肥厚,造影効果,腸間膜血管の拡張,脂肪織濃度の上昇などを検討することで内視鏡と同様に炎症状態を評価できる.今後,前処置の簡便化やX線被曝の低減化が課題であるが,低線量CTなどの導入により解決できる可能性がある.
The number of Japanese patients with IBD(inflammatory bowel disease)is increasing. A precise and subjective assessment of disease activity in IBD is a desirable goal in clinical practice. CTE(CT enterography)is available for assessment of enteral wall and extra-enteric complications in Crohn's disease. CTE allows for evaluation of inflammation in both small and large bowels. CTC(CT colonography)is useful to assess disease activity, such as endoscopy for UC, by displaying luminal narrowing and loss of haustra in an air image and displaying bowel wall hypertrophy, mural hyperenhancement, and mesenteric hypervascularity in a MPR(multiplanar reconstruction)image. The simplification of pretreatment as well as radiation exposure should be considered when CT is introduced for an IBD diagnosis. To minimize the radiation exposure, the low-dose technique of CT may be a promising solution.
Copyright © 2016, Igaku-Shoin Ltd. All rights reserved.