Gut Investigations Practical advice before procedure Cranial CT scan Oesophageal motility and manometry studies Abdominal CT Scan Cranial MRI Scan Pancreatic function studies Abdominal MRI Scan ERCP & MRCP Per-cutaneous gastrostomy Abdominal Ultrasound Faecal analysis pH acid studies Abdominal Xray Hydrogen Breath Tests Small bowel biopsy Barium Meal and Follow Through Isotope white cell inflammatory scan Upper GI endoscopy Barium Swallow Liver biopsy Wireless “Bravo” pH study Colonoscopy Common gut related blood tests Wireless capsule endoscopy Meckel’s diverticulum isotope scan