RAD CT Guide

From ACR appropriateness criteria

• abdominal pain, acute, non-localised, +/- fever/neutropenia, initial exam 

• Post-operative non localised acute abdominal pain +/- fever 

• Pancreatitis

  • necrotising, significant clinical deterioration 

  • suspected, atypical presentation 

  • acute, critically ill, >48 hours 

  • acute, severe, >7 days 

  • persistent, >4 weeks

• Pelvic pain, negative bHCG, non-gyn aetiology suspected 

• Pyelonephritis

  • suspected, acute, (complicated, advanced age, diabetes, immunocompromised, lack of response to therapy), initial imaging 

  • history of pelvic renal transplant, native kidneys in situ, no other complications, initial imaging 

  • Recurrent

  • acute pyelonephritis with history of renal obstruction, vesicoureteral reflux, or renal stones 

• Colectomy with anastomosis, complication suspected (initial imaging)

• Coloproctectomy with anastomosis, complication suspected (initial imaging) 

• Perianal abscess suspected (initial imaging)

• Perianal fistula suspected (initial imaging)

• Post proctectomy with anastomosis, complication suspected (initial imaging)

• Pouchitis suspected (initial imaging) 

• Proctitis suspected (initial imaging) 

• Rectovaginal fistula suspected (initial imaging) 

• Recto vesicular fistula suspected (initial imaging) 

• Adnexal mass, malignancy suspected, follow up 

• Crohn disease suspected (initial imaging)

• Acute exacerbation of Crohn disease suspected (adult, non-paediatric - MRI indicated)

• Epigastric pain

  • gastric malignancy suspected, initial imaging 

  • gastritis suspected, initial imaging 

• Abdominal wall hernia suspected, (incisional, lumbar, spigelian, umbilical, ventral), initial imaging

• Deep pelvic hernia suspected, (obturator, perineal, sciatic), initial imaging 

• Groin hernia suspected, (femoral, inguinal), initial imaging 

• LLQ pain, suspected diverticulitis or diverticulitis complication suspected

• Renal cell carcinoma (RCC), localised, active surveillance, post partial or radical nephrectomy

• Pelvic pain, acute, post-menopausal (initial imaging)

• RLQ pain (initial imaging)

• Evaluation, solid or hollow organ mass 

• Paediatric

  • suspected appendicitis, US non diagnostic 

  • suspected appendicitis, complication suspected 

  • abuse suspected, trunk injuries suspected, initial study 

• Retroperitoneal bleed suspected, initial imaging (CTA also)

• Small bowel obstruction suspected, acute presentation, initial imaging 

  • Intermittent or low grade