Prospective Comparison of Nonenhanced Helical Computerized Tomography and Doppler Ultrasonography for the Diagnosis of Renal Colic

Shokeir, Ahmed A.; Abdulmaaboud, Magdy

doi:10.1097/00005392-200104000-00005

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Clinical Utility Of Imaging Studies For Stone Disease1

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2010

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“…Use of Doppler technology and determination of resistive indices (RI) can aid in the diagnosis of obstruction [35,36]. RI greater than 0.70 has demonstrated a sensitivity of 45% and specificity of 91% for obstruction, with a difference between kidneys of greater than 0.06 increasing the sensitivity to 95% and specificity to 100%.…”

Section: Clinical Utility Of Imaging Studies For Stone Diseasementioning

confidence: 99%

Evaluation and Follow-Up of Patients with Urinary Lithiasis: Minimizing Radiation Exposure

Hyams

Shah

2010

Curr Urol Rep

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As unenhanced computed tomography (CT) has supplanted other modalities (eg, intravenous urography, ultrasonography) as the "test of choice" for evaluation of stone disease, patients have been exposed to higher doses of ionizing radiation in both primary evaluation and follow-up. There has been progressive recognition that low doses of radiation in the range of conventional CT may increase the long-term risk of cancer in exposed patients; these data have been extrapolated from longitudinal and ongoing study of atomic bomb survivors. There have been mounting efforts to develop alternative approaches to conventional CT (eg, low-dose protocols, substitution of ultrasound/plain X-ray) to provide comparable data while reducing total radiation exposure. It is essential that urologists collaborate with radiologists, emergency room physicians, and other providers to appropriately balance the theoretical risks and practical benefits of ionizing radiation in the diagnosis of stone disease.

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Section: Clinical Utility Of Imaging Studies For Stone Diseasementioning

confidence: 99%

Evaluation and Follow-Up of Patients with Urinary Lithiasis: Minimizing Radiation Exposure

Hyams

Shah

2010

Curr Urol Rep

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show abstract

Prospective Comparison of Nonenhanced Helical Computerized Tomography and Doppler Ultrasonography for the Diagnosis of Renal Colic

Abstract: Nonenhanced helical CT and change in resistive index are sensitive and specific tests that can contribute significantly to the diagnosis of acute unilateral renal obstruction. They can replace IVP, particularly in situations in which it is undesirable.

Cited by 1 publication

References 12 publications

Evaluation and Follow-Up of Patients with Urinary Lithiasis: Minimizing Radiation Exposure

Evaluation and Follow-Up of Patients with Urinary Lithiasis: Minimizing Radiation Exposure

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