복부초음파 검사 시 탐촉자 압박에 따른 영상 화질 평가
Evaluation of Image Quality according to Pressure of Transducer during Abdominal Ultrasonography
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초록
Abdominal ultrasound images with or without compression of the transducers, beforeand after endoscopy, were evaluate SNR and CNR which showing good images of abdominalorgans (centered on the pancreas) and the effect of reducing stomach, duodenum, and intestinalgas artifacts. Statistical analysis was performed using the non-parametric krukal-Wallis testcomparisons between the presence or absence of compression and before and after endoscopy. Thestructural model of the triple batch method with the different number of experimenters was usedfor expected factors that will affect the response value (with or without compression, SNR or CNR,group). Between difference before and after endoscopy and SNR, CNR intergroup interactionswere statistically significant. Scheffe’s post test was used to compare the mean difference betweengroups, the response value of overweight was higher than that of the control group (phantom),and there was no difference between the other groups in the control group. CNR and SNR andintergroup interactions are similar to intergroup effect of overweight (NO) before endoscopyin responses to CNR and SNR were significant differences and other patients showed similarresults to phantom. Before and after endoscopy of with or without compression, there was nodifference between before and after endoscopy. The SNR and CNR values were higher than thoseof compression stress. Therefore it would considered necessary to apply pressure to improve thequality of the abdominal ultrasound image.
Abstract
Abdominal ultrasound images with or without compression of the transducers, beforeand after endoscopy, were evaluate SNR and CNR which showing good images of abdominalorgans (centered on the pancreas) and the effect of reducing stomach, duodenum, and intestinalgas artifacts. Statistical analysis was performed using the non-parametric krukal-Wallis testcomparisons between the presence or absence of compression and before and after endoscopy. Thestructural model of the triple batch method with the different number of experimenters was usedfor expected factors that will affect the response value (with or without compression, SNR or CNR,group). Between difference before and after endoscopy and SNR, CNR intergroup interactionswere statistically significant. Scheffe’s post test was used to compare the mean difference betweengroups, the response value of overweight was higher than that of the control group (phantom),and there was no difference between the other groups in the control group. CNR and SNR andintergroup interactions are similar to intergroup effect of overweight (NO) before endoscopyin responses to CNR and SNR were significant differences and other patients showed similarresults to phantom. Before and after endoscopy of with or without compression, there was nodifference between before and after endoscopy. The SNR and CNR values were higher than thoseof compression stress. Therefore it would considered necessary to apply pressure to improve thequality of the abdominal ultrasound image.
참고문헌 (16)
- Chung JB, "Percutaneous fine needle aspiration biopsy of pancreatic cancer guided by ultrasonography", Korean J. Intern. Med., 4(2), pp.125~129 (1989)
- Entrekin RR, "Real-time spatial compound imaging: Application to breast, vascular, and musculoskeletal ultrasound", Semin. Ultrasound CT. MR., 22(1), pp.50~64 (2001)
- Feldman MK, "US artifacts", Radiographics, 29(4), pp.1179~1189 (2009)
- Fikri MA, "Clinical ultrasound physics", J. Emerg. Trauma Shock, 4(4), pp.501~503 (2011)
- Hangiandreou NJ, "AAPM", RSNA physics tutorial for residents. Topics in US: B-mode US: Basic concepts and new technology, 2003, pp.23(4), 1019~1033
- Hettmansperger TP, "Robust Nonparametric Statistical Methods" (2011), Chapman-Hall
- Hocking RR, "The Analysis of Linear Models" (1985)
- Kim IB, "Abdominal Ultrasound Basic Method", Korean J. Med., 83(2), pp.161~169 (2012)
- Kim WH, "Gastric varices: diagnosis with duplex Doppler ultrasonography-a case report", Yonsei Med. J., 33(2), pp.189~193 (1992)
- 공창기, "간접변환방식 DR장비에서 CsI:Tl과 Gd2O2S의 검출기 화질 평가", 한국방사선학회논문지, 11(1), pp.27~35 (2017), 한국방사선학회[DOI]
- Lee WR, "Pancreatic ultrasonography", Clin. Gastroenterol., 13(3), pp.763~789 (1984)
- Park SE, "Abdominal Ultrasonography: Procedure and Training", Korean J. Fam. Pract., 4(1), pp.28~37 (2014)
- Philips, "Global image sharpness study" (2001), Philips-Ultrasound Scientifica, Inc
- Philips, "Sono CT-XREX Technology", Philips-Ultrasound, ~ (2018)
- Whittingham TA, "Medical diagnostic applications and sources", Prog. Biophys. Mol. Biol., 93(1-3), pp.84~110 (2018)
- Worrell JA, "Graded compression ultrasound in the diagnosis of appendicitis. A comparison of diagnostic criteria", J. Ultrasound Med., 9(3), pp.145~150 (1990)