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Evaluation of the Accuracy of Abdominal Ultrasound Focusing on the Missed Lesions Based on the Abdominal Computed Tomography in Health Screening
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Àå¿ë¼®(Jang Yong-Suk) - Myongji Hospital Department of Radiology
¹Ú³ëÇõ(Park Noh-Hyuck) - Myongji Hospital Department of Radiology
¹ÚÂù¼·(Park Chan-Sub) - Myongji Hospital Department of Radiology
¼º¼ö¿Á(Seong Su-Ok) - Myongji Hospital Department of Radiology
Abstract
Purpose: To evaluate the accuracy of abdominal ultrasonography (US), and the incidence, size and types of lesions, easily missed on abdominal US in health screening.
Materials and Methods: We retrospectively enrolled 311 physical checkup patients (male-to-female ratio, 156:155; mean age, 53.1 years), who underwent screening abdominal US and abdominal computed tomography (CT) on same day from July, 2011 to October, 2013. Per-organ and per-lesion analyses and verification of size and location of renal and hepatic lesions which were frequently missed on abdominal US were performed.
Results: Overall, 209 additional lesions were found on abdominal CT in 140 physical checkup patients and the missing rate of the lesion was 45%. Renal lesions were most common (105 lesions), followed by hepatic lesions (91 lesions). In renal and hepatic lesions which were missed on abdominal US, most (93.4%, 93.5%) lesions were less than 1.5 cm in longitudinal diameter. Most of missed renal lesions were located in mid portion of left kidney (24.7%). Most of the missed hepatic lesions on US were located in the hepatic dome (segment 7, 8, 2) (66%).
Conclusion: An awareness of the prevalence and location of easily missed lesions on screening abdominal US is helpful to enhance diagnostic performance of abdominal US in physical checkup patients.
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Health Screening, Abdominal Ultrasound, Abdominal Computed Tomography
KMID :
1103720140700050363
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