JOURNAL ARTICLE

Assessing the appropriateness of outpatient abdominopelvic CT and MRI examinations using the American College of Radiology Appropriateness Criteria

Andrew B Rosenkrantz, Khalil Marie, Ankur Doshi
Academic Radiology 2015, 22 (2): 158-63
25442803

RATIONALE AND OBJECTIVES: To retrospectively assess the appropriateness of outpatient abdominal and pelvic computed tomography (CT) and magnetic resonance imaging (MRI) examinations using the American College of Radiology Appropriateness Criteria (AC).

MATERIALS AND METHODS: A total of 570 adult outpatient abdominopelvic CT (304) and MRI (266) studies performed in a 1-month period with available documentation of the clinical encounter generating the imaging order were included. On the basis of review of the imaging report and patient record, examinations were classified in terms of match to a specific AC variant, appropriateness score, and the presence of a significant result. Data were analyzed using Fisher's exact test.

RESULTS: Forty-five percent of examinations matched an AC variant: 52% of CT and 38% of MRI (P < .001). Ninety-two percent of examinations matching the AC were appropriate: 96% of CT and 86% of MRI (P = .009). Appropriate examinations were more likely to provide a significant result than not appropriate studies (48% vs. 24%, P = .041). Although a significant result was related to the primary study indication more frequently in appropriate than not appropriate examinations, this difference was not significant (93% vs. 80%, respectively, P = .204). The most common indications not matching an AC were colon cancer follow-up (n = 14) and melanoma follow-up (n = 14) among CT, and hepatocellular carcinoma screening (n = 31) and elevated prostate-specific antigen (PSA) without prior biopsy (n = 14) among MRI.

CONCLUSIONS: Most examinations matching the AC were appropriate, and appropriate examinations were more likely to have a significant result. However, most examinations, including 62% of MRI, had no relevant clinical condition, highlighting a critical area for future AC expansion and modification.

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read
25442803
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"