Abstract
RATIONALE AND OBJECTIVES. A radiologist often wishes to measure organ volume or monitor changes in internal lesion volume during treatment. If this can be determined via three-dimensional ultrasound, the relative simplicity of the procedure and the decreased cost and known risks to the patient would make this method an attractive alternative to other modalities. METHODS. Three-dimensional ultrasound scans were made of six phantoms: four nonechogenic spheres, one echogenic sphere, and one echogenic, irregularly shaped phantom. A total of 22 volume scans were produced. Volume estimations were made using data from cross-sectional areas and from linear measurements. In all, 193 volume estimations were made. These results were compared with known volumes and with volume estimates from computed tomography scans. RESULTS. Three-dimensional ultrasound detected size differences of 10% with 95% certainty. CONCLUSIONS. The accuracy and precision of volume estimates via three-dimensional ultrasound is at least as good as those obtained via conventional ultrasound.
Original language | English (US) |
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Pages (from-to) | 26-29 |
Number of pages | 4 |
Journal | Investigative Radiology |
Volume | 31 |
Issue number | 1 |
State | Published - Jan 1996 |
Keywords
- Instrument accuracy
- Three-dimensional ultrasound
- Ultrasonic diagnosis
- Volume estimation
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology