TY - JOUR
T1 - Usefulness of a target sample check illuminator in the detection of target specimens in endoscopic ultrasound-guided fine-needle biopsy samples
T2 - Multicenter prospective study
AU - Matsumoto, Kazuya
AU - Hara, Kazuo
AU - Yasuda, Ichiro
AU - Itoi, Takao
AU - Kurumi, Hiroki
AU - Matsumoto, Shimpei
AU - Doi, Shinpei
AU - Honjo, Mitsuyoshi
AU - Takeda, Yohei
AU - Shibuya, Jin
AU - Noma, Hisashi
AU - Isomoto, Hajime
N1 - Publisher Copyright:
© 2020 Japan Gastroenterological Endoscopy Society
PY - 2021/9
Y1 - 2021/9
N2 - Objectives: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) uses a thin needle, rendering unclear whether the collected sample contains pathological evidence. We examined the usefulness of our target sample check illuminator (TSCI) through a multicenter prospective trial. Methods: We included 52 consecutive patients. After assessing EUS-FNB samples by conventional (visual observation) and TSCI methods, we evaluated consistency with the histopathological diagnosis. We compared the target sample confirmation rate between conventional and TSCI methods and evaluated the diagnostic ability separately. Results: Comparison between the conventional and TSCI methods revealed the following: (i) for all cases: sensitivity, 51.0% (25/49) vs. 95.9% (47/49) (P = 0.001); specificity, 100% (3/3) vs. 66.7% (2/3); positive predictive value (PPV), 100% (25/25) vs. 97.9% (47/48); and negative predictive value (NPV), 11.1% (3/27) vs. 50.0% (2/4) (P = 0.002); (ii) for pancreatic masses: sensitivity, 28.0% (7/25) vs. 96.0% (24/25) (P < 0.001); specificity, 100% (2/2) vs. 100% (2/2); PPV, 100% (7/7) vs. 100% (24/24); and NPV, 10.0% (2/20) vs. 66.7% (2/3) (P < 0.001) (the TSCI method showed significantly better sensitivity and NPV than the conventional method); and (iii) for lymph node tumors: sensitivity, 75.0% (18/24) vs. 95.8% (23/24) (P = 0.025); specificity, 100% (1/1) vs. 0% (0/1); PPV, 100% (18/18) vs. 95.8% (23/24); and NPV, 14.3% (1/7) vs. 0% (0/1). Conclusions: The TSCI improved the sensitivity, NPV, and accuracy of target sample confirmation for pancreatic mass EUS-FNB. Although the proportion of samples not including a target region was quite low, which could strongly influence our results, the TSCI method can be used in EUS-FNB when rapid on-site evaluation cannot be performed. (A multicenter prospective study for the utility of a target sample check illuminator, Clinical Trial ID: UMIN000023349).
AB - Objectives: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) uses a thin needle, rendering unclear whether the collected sample contains pathological evidence. We examined the usefulness of our target sample check illuminator (TSCI) through a multicenter prospective trial. Methods: We included 52 consecutive patients. After assessing EUS-FNB samples by conventional (visual observation) and TSCI methods, we evaluated consistency with the histopathological diagnosis. We compared the target sample confirmation rate between conventional and TSCI methods and evaluated the diagnostic ability separately. Results: Comparison between the conventional and TSCI methods revealed the following: (i) for all cases: sensitivity, 51.0% (25/49) vs. 95.9% (47/49) (P = 0.001); specificity, 100% (3/3) vs. 66.7% (2/3); positive predictive value (PPV), 100% (25/25) vs. 97.9% (47/48); and negative predictive value (NPV), 11.1% (3/27) vs. 50.0% (2/4) (P = 0.002); (ii) for pancreatic masses: sensitivity, 28.0% (7/25) vs. 96.0% (24/25) (P < 0.001); specificity, 100% (2/2) vs. 100% (2/2); PPV, 100% (7/7) vs. 100% (24/24); and NPV, 10.0% (2/20) vs. 66.7% (2/3) (P < 0.001) (the TSCI method showed significantly better sensitivity and NPV than the conventional method); and (iii) for lymph node tumors: sensitivity, 75.0% (18/24) vs. 95.8% (23/24) (P = 0.025); specificity, 100% (1/1) vs. 0% (0/1); PPV, 100% (18/18) vs. 95.8% (23/24); and NPV, 14.3% (1/7) vs. 0% (0/1). Conclusions: The TSCI improved the sensitivity, NPV, and accuracy of target sample confirmation for pancreatic mass EUS-FNB. Although the proportion of samples not including a target region was quite low, which could strongly influence our results, the TSCI method can be used in EUS-FNB when rapid on-site evaluation cannot be performed. (A multicenter prospective study for the utility of a target sample check illuminator, Clinical Trial ID: UMIN000023349).
KW - endoscopic ultrasound-guided fine-needle aspiration
KW - endoscopic ultrasound-guided fine-needle biopsy
KW - pancreatic masses and lymph node tumors
KW - rapid on-site evaluation
KW - target sample check illuminator
UR - http://www.scopus.com/inward/record.url?scp=85098208832&partnerID=8YFLogxK
U2 - 10.1111/den.13903
DO - 10.1111/den.13903
M3 - 学術論文
C2 - 33251622
AN - SCOPUS:85098208832
SN - 0915-5635
VL - 33
SP - 970
EP - 976
JO - Digestive Endoscopy
JF - Digestive Endoscopy
IS - 6
ER -