Introduction
Background
Aim
Water enema multidetector CT technique and interpretation
Bowel preparation
Contraindications
Patient preparation
MDCT acquisition protocol
Exam safety
Exam interpretation and pitfalls
Diverticular disease
Epidemiology and role of imaging
Diverticulosis: WE-MDCT findings
Acute diverticulitis: WE-MDCT findings
Chronic inflammatory bowel diseases
Epidemiology and role of imaging
Ulcerative colitis
Crohn’s disease
Indeterminate colitis
Conclusion
Indication | Scope |
---|---|
Suspected or known colorectal carcinoma | Local staging |
Upstream bowel exploration if endoscopy is incomplete | |
Planning surgery | |
Distant staging | |
Colonic stricture of unclear nature | Assess stricture features |
Planning endoscopic biopsy or surgery | |
Upstream bowel exploration if endoscopy is incomplete | |
Colonic diverticulosis | Disease distribution |
Exclusion of complications | |
Planning surgery | |
Upstream bowel exploration if endoscopy is incomplete | |
Acute/subacute diverticulitisa | Obviate endoscopy |
Detection or exclusion of complications | |
Planning surgery | |
Inflammatory bowel diseases (ulcerative, Crohn’s, or indeterminate colitis) | Disease severity |
Disease distribution | |
Differential diagnosis between UC and CD | |
Colorectal cancer screening | |
Assess stricture features | |
Upstream bowel exploration if endoscopy is incomplete | |
Planning surgery or endoscopic dilatation | |
Post-surgical anatomy | |
Acute exacerbations of inflammatory bowel diseasesa | Disease severity |
Disease distribution | |
Obviate endoscopy | |
Detection or exclusion of complications | |
Bowel endometriosis (2) | Disease detection and staging |