Accurate Predictor of True Stone Size During Ultrasound
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چکیده
منابع مشابه
14 - 7449 Novel Automated Stone Detection System to Measure Renal Calculi with Ultrasound
INTRODUCTION AND OBJECTIVES: Ultrasonography is underutilized in the diagnosis and follow-up of nephrolithiasis due to its poor accuracy and variability in detecting stones. We sought to decrease ultrasound user variability by developing a computer algorithm to automate stone sizing. METHODS: Calcium oxalate monohydrate renal calculi were imaged in a water bath using a research ultrasound syste...
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PURPOSE A prototype ultrasound-based probe for use in ureteroscopy was used for in vitro measurements of stone fragments in a porcine kidney. METHODS Fifteen human stones consisting of three different compositions were placed deep in the collecting system of a porcine kidney. A 2 MHz, 1.2 mm (3.6F) needle hydrophone was used to send and receive ultrasound pulses for stone sizing. Calculated s...
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