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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02878148
Other study ID # 9656
Secondary ID 2015-A01981-48
Status Completed
Phase N/A
First received
Last updated
Start date October 17, 2016
Est. completion date February 22, 2018

Study information

Verified date October 2019
Source University Hospital, Montpellier
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Prospective single centre study aiming at validating a conditional imaging strategy for diagnosis of suspected kidney stone.

Consecutive Emergency department patients referred to the medical imaging department for exploration of a suspected acute uncomplicated renal colic will undergo the following interventions : systematic plain abdominal Xray, systematic ultrasonography and systematic unenhanced CT (with a reduced dose scan), in addition to clinical examination and assessment of body mass index and the Sex, Timing, Origin, Nausea, Erythrocytes (STONE) clinical prediction score for symptomatic stone.

Patients will be followed up at 1 month to record the need for urologic intervention and its type.

The performances of different conditional imaging strategy for the diagnosis of suspected renal colic will be assessed retrospectively. The conditional strategies tested will be based on the patient's stone score and BMI and targeted use of combined plain X-ray and ultrasonography and/or unenhanced CT.

The reference diagnosis for renal colic will be made according to the finding of a ureteral stone or indirect signs of urolithiasis at unenhanced CT.


Description:

Plain abdominal Xray, Ultrasonography and unenhanced CT of the abdomen and pelvis will be performed at the time of admission to the imaging department, within 2 days from ED visit and within a 1 hour delay from each other.

Ultrasonography will be interpretated in combination to plain abdominal Xray, and independently from unenhanced CT, by two experienced radiologists blinded to the results of each other.


Recruitment information / eligibility

Status Completed
Enrollment 220
Est. completion date February 22, 2018
Est. primary completion date January 19, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion criteria:

- Adult patient

- Patient admitted to the Emergency department with suspected acute uncomplicated renal colic

Exclusion criteria:

- Patient presenting with fever (>38°C)

- Patient with persisting pain despite administration of morphinic

- Patient presenting with anuria

- Patients with a single kidney and/or history of chronic renal failure

- Pregnant women or breastfeeding women

- Patient with a history of renal colic

- Patients unable to provide informed consent

Study Design


Intervention

Device:
Diagnostic imaging modalities for suspected renal colic
All patients with suspected acute uncomplicated renal colic included will undergo ultrasonography in addition to unenhanced CT of pelvis and abdomen and plain X-ray of the abdomen. Imaging examination will be performed according to current guidelines. Ultrasonography study and colour doppler will include the kidney, ureterovesical joint and ureters. Unenhanced CT will be performed using a dedicated low-dose protocol.

Locations

Country Name City State
France Departement of Medical Imaging Montpellier

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Montpellier

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Diagnostic performances (sensitivity,specificity, calculated according to the tested conditional strategies imaging modality) Different conditional strategies will be evaluated a posteriori based on the targeted use or not of ultrasonography combined to plain X-ray and/or unenhanced CT, according to the patient's STONE score and BMI.
The reference diagnosis for renal colic will be made according to the finding of a ureteral stone or indirect signs of urolithiasis at unenhanced CT (gold standard imaging modality)
Baseline
Secondary Radiation exposure dose according to the different imaging strategies tested The reference strategy will be systematic unenhanced CT. Baseline
Secondary Diagnostic performances of the tested conditional strategies for the diagnosis of ureteral stone in patients with urethral stone who benefited from urologic management Baseline
Secondary Diagnostic performances of the tested conditional strategies for alternative diagnosis Baseline
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