Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department

Purpose To evaluate the sensitivity of corticomedullary-phase imaging for detecting urinary stones in patients with renal colic who visited the emergency department. Materials and Methods This retrospective study included 253 patients with suspected renal colic from two tertiary hospitals in Sout...

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Main Authors: Seokyoung Lee, Yang Shin Park, Bitna Park, Jongmee Lee, Jae Woong Choi, Kyeong Ah Kim, Chang Hee Lee
Format: Article
Language:English
Published: The Korean Society of Radiology 2023-07-01
Series:Journal of the Korean Society of Radiology
Subjects:
Online Access:https://doi.org/10.3348/jksr.2022.0098
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author Seokyoung Lee
Yang Shin Park
Bitna Park
Jongmee Lee
Jae Woong Choi
Kyeong Ah Kim
Chang Hee Lee
author_facet Seokyoung Lee
Yang Shin Park
Bitna Park
Jongmee Lee
Jae Woong Choi
Kyeong Ah Kim
Chang Hee Lee
author_sort Seokyoung Lee
collection DOAJ
description Purpose To evaluate the sensitivity of corticomedullary-phase imaging for detecting urinary stones in patients with renal colic who visited the emergency department. Materials and Methods This retrospective study included 253 patients with suspected renal colic from two tertiary hospitals in South Korea, who visited the emergency department and underwent CT urography. Two radiologists blinded to the clinical history independently reviewed the corticomedullary- phase images. The sensitivity for identifying urinary stones were evaluated for each reviewer. After the initial evaluation, the images were re-evaluated based on patient history. The sensitivity of re-evaluation were recorded. Results Of 253 patients, 150 (59%) had urinary stones. Among them, significant stones were observed in 138 patients (92%), and obstructive changes on CT in 124 patients (82.7%). For identifying significant urinary stones, the sensitivity was 98.6% (136/138) for both the reviewers. For identifying significant urinary stones with urinary obstruction, the sensitivity was 99.2% (123/124) for reviewer 1, and 100% (124/124) for reviewer 2. The sensitivity for identifying significant stones increased from 98.6% to 100% for reviewer 1, and from 98.6% to 99.3% for reviewer 2 in the re-evaluation session. Conclusion The corticomedullary-phase CT urography was sensitive for diagnosing urolithiasis in patients with acute renal colic who visited the emergency department.
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spelling doaj.art-e251655545a04a6d8326b0b445f1947a2023-07-30T09:34:09ZengThe Korean Society of RadiologyJournal of the Korean Society of Radiology2951-08052023-07-01844923933https://doi.org/10.3348/jksr.2022.0098Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency DepartmentSeokyoung LeeYang Shin ParkBitna ParkJongmee LeeJae Woong ChoiKyeong Ah KimChang Hee LeePurpose To evaluate the sensitivity of corticomedullary-phase imaging for detecting urinary stones in patients with renal colic who visited the emergency department. Materials and Methods This retrospective study included 253 patients with suspected renal colic from two tertiary hospitals in South Korea, who visited the emergency department and underwent CT urography. Two radiologists blinded to the clinical history independently reviewed the corticomedullary- phase images. The sensitivity for identifying urinary stones were evaluated for each reviewer. After the initial evaluation, the images were re-evaluated based on patient history. The sensitivity of re-evaluation were recorded. Results Of 253 patients, 150 (59%) had urinary stones. Among them, significant stones were observed in 138 patients (92%), and obstructive changes on CT in 124 patients (82.7%). For identifying significant urinary stones, the sensitivity was 98.6% (136/138) for both the reviewers. For identifying significant urinary stones with urinary obstruction, the sensitivity was 99.2% (123/124) for reviewer 1, and 100% (124/124) for reviewer 2. The sensitivity for identifying significant stones increased from 98.6% to 100% for reviewer 1, and from 98.6% to 99.3% for reviewer 2 in the re-evaluation session. Conclusion The corticomedullary-phase CT urography was sensitive for diagnosing urolithiasis in patients with acute renal colic who visited the emergency department.https://doi.org/10.3348/jksr.2022.0098multidetector computed tomographyurographyrenal colicemergency servicehospital
spellingShingle Seokyoung Lee
Yang Shin Park
Bitna Park
Jongmee Lee
Jae Woong Choi
Kyeong Ah Kim
Chang Hee Lee
Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
Journal of the Korean Society of Radiology
multidetector computed tomography
urography
renal colic
emergency service
hospital
title Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
title_full Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
title_fullStr Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
title_full_unstemmed Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
title_short Usefulness of Corticomedullary-Phase CT Urography in Patients with Suspected Acute Renal Colic Visiting the Emergency Department
title_sort usefulness of corticomedullary phase ct urography in patients with suspected acute renal colic visiting the emergency department
topic multidetector computed tomography
urography
renal colic
emergency service
hospital
url https://doi.org/10.3348/jksr.2022.0098
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