COMPARATIVE STUDY
JOURNAL ARTICLE

Comparative analysis and interobserver variation of unenhanced computed tomography and intravenous urography in the diagnosis of acute flank pain

Abdelmohsen Ben Nakhi, Renu Gupta, Adel Al-Hunayan, Thomas Muttikkal, Venu Chavan, Ahmed Mohammed, Yusuf Ali
Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre 2010, 19 (2): 118-21
20134174

OBJECTIVES: The purpose of this study was to compare unenhanced computed tomography (UECT) to intravenous urography (IVU) for detecting urinary tract calculi, signs of obstruction and non-renal causes in the assessment of acute flank pain, and in their interobserver agreement.

PATIENTS AND METHODS: In this prospective study, carried out at a university hospital over a period of 1 year, 36 patients (27 males and 9 females) participated. Mean age was 44 +/- 15 years (range: 14-73 years). The patients presented with acute flank pain and underwent UECT and IVU. The images were blindly evaluated by 2 experienced radiologists and the two techniques compared using the two-tailed McNemar's test for matched pairs; p values <0.05 were considered significant.

RESULTS: UECT detected stones in 11 (30.6%) patients, while IVU found them in only 8 (22.2%). The increased detection by UECT was due to its ability to detect smaller stones (<6 mm). UECT was also found to be better than IVU in determining calculus position, in detecting primary or secondary signs of obstruction and in identifying non-urinary causes of flank pain. The overall average of agreement, as indicated by kappa values, was 0.88 for UECT and 0.61 for IVU.

CONCLUSION: UECT showed better detectability and interobserver agreement tan IVU, suggesting that UECT could replace IVU as the first imaging modality in the evaluation of acute renal colic.

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
20134174
×

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"