복부초음파 검사 시 탐촉자 압박과 체위 변화에 따른 영상 화질 평가
Assessment of Image Quality according to Pressure and Position Change of Transducer during Abdominal Ultrasonography
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SNR and CNR were evaluated to investigate the effect of reducing the stomach, duodenum,and intestinal gas artifacts through transducer compression and position changes to obtaina good image of the abdominal organs (centered on the pancreas) in abdominal ultrasonographyperformed after gastroscopy, abdominal ultrasound examination after colon cleansing andabdominal ultrasonography performed after simultaneous gastroscopy and colonoscopy. Therewas a difference between SNR and CNR according to the presence or absence of compression, butcompression did not affect the ultrasound sequence and weight. There was a significant differencein the CNR in the position change but the change in the position did not affect the abdominalultrasonography order and the weight group. The results of qualitative evaluation showed that therewere differences in the clarity, internal structure, and visual range of the pancreatic head accordingto the pressure and the change of the position, and the order of abdominal ultrasonography andweight group were affected. In the case of obesity, abdominal ultrasonography should be performedbefore the endoscopy to avoid obstruction of artifacts such as gastric and intestinal gas and intestinalfluid by attenuation due to subcutaneous fat or visceral fat of the abdominal wall. In order to removestomach and intestinal gas that may interfere with abdominal ultrasonography. Therefore, improvethe quality of the images, it is considered that the pressure of the transducer and the change of theposition of the examinee should be performed.
Abstract
SNR and CNR were evaluated to investigate the effect of reducing the stomach, duodenum,and intestinal gas artifacts through transducer compression and position changes to obtaina good image of the abdominal organs (centered on the pancreas) in abdominal ultrasonographyperformed after gastroscopy, abdominal ultrasound examination after colon cleansing andabdominal ultrasonography performed after simultaneous gastroscopy and colonoscopy. Therewas a difference between SNR and CNR according to the presence or absence of compression, butcompression did not affect the ultrasound sequence and weight. There was a significant differencein the CNR in the position change but the change in the position did not affect the abdominalultrasonography order and the weight group. The results of qualitative evaluation showed that therewere differences in the clarity, internal structure, and visual range of the pancreatic head accordingto the pressure and the change of the position, and the order of abdominal ultrasonography andweight group were affected. In the case of obesity, abdominal ultrasonography should be performedbefore the endoscopy to avoid obstruction of artifacts such as gastric and intestinal gas and intestinalfluid by attenuation due to subcutaneous fat or visceral fat of the abdominal wall. In order to removestomach and intestinal gas that may interfere with abdominal ultrasonography. Therefore, improvethe quality of the images, it is considered that the pressure of the transducer and the change of theposition of the examinee should be performed.
참고문헌 (9)
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