Efforts to improve the accuracy of abdominal ultrasonic examination at screening

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  • 腹部超音波スクリーニングにおける精度向上の取り組み
  • 経験 腹部超音波スクリーニングにおける精度向上の取り組み
  • ケイケン フクブ チョウオンパ スクリーニング ニ オケル セイド コウジョウ ノ トリクミ

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Abstract

<p>We report our various efforts to improve the accuracy of abdominal ultrasonic screening, focusing on the electronic information systems and the training of sonographers. We analyzed the detection rate of early-stage cancer, among all cancers (liver, biliary tract, pancreas, and kidney) detected during abdominal ultrasonic examinations at our health check-up center and compared the results before and after the implementation of the electronic information systems.</p><p>The total number of examinees analyzed before the implementation was 160,851 (101,742 men and 59,109 women) during the period from April 1, 2003, through March 31, 2006. For comparison, we analyzed a total of 138,842 examinees (87,505 men and 51,337 women) after the implementation from April 1, 2013, through March 31, 2016. The definition of early-stage cancer was not higher than T1N0. </p><p>The results of the analysis revealed that a total of 87 cancers were detected among the 160,851 examinees before the electronic information systems were implemented, among which 31 cases (35.6%) were early-stage cancers. In contrast, after the implementation, 71 cancers were detected among 138,838 examinees, among which 35 cases (49.3%) were early-stage cancers. </p><p>Using the X2 test to compare all the data before and after the implementation, at a P value of 0.079, the detection rate did not exhibit better performance, although some improvement was confirmed. </p><p>At our health check-up center, the number of multiphasic medical examinees has been increasing, and approximately 90% of them are annual examinees. The implementation of the electronic information system enables us to process our check-ups in an efficient manner as we are able to refer to their past data and imaging results and obtain the accurate picture for a specific part of the body that is often difficult to monitor. We believe that our commitment to use two different perspectives, the use of the electronic information system and our training program for our sonographers, has significantly contributed to the higher rate of detecting early-stage cancer. We would like to make further efforts to improve the accuracy of detection by adopting a new examination method in accordance with the screening manual of abdominal ultrasonic examination.</p>

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