Interobserver agreement for single operator choledochoscopy imaging: can we do better?
Background. The SpyGlass Direct Visualization System (Boston Scientific, Natick, MA) is routinely used during single operator choledochoscopy (SOC) to identify biliary lesions or strictures with a diagnostic accuracy up to 88%. The objective of this study was to determine the interobserver agreement (IOA) of modified scoring criteria for diagnosing biliary lesions/strictures. Methods. 27 SPY SOC video clips were reviewed and scored by 9 interventional endoscopists based on published criteria that included the presence and severity of surface structure, vasculature visualization, lesions, and findings. Results. Overall IOA was "slight" for all variables. The K statistics are as follows: surface (K = 0.12, SE = 0.02); vessels (K = 0.14, SE = 0.02); lesions (K = 0.11, SE = 0.02); findings (K = 0.08, SE = 0.03); and final diagnosis (K = 0.08, SE = 0.02). The IOA for "findings" and "final diagnosis" was also only "slight." The final diagnosis was malignant (11), benign (11), and indeterminate (5). Conclusion. IOA using the modified criteria of SOC images was slight to almost poor. The average accuracy was less than 50%. These findings reaffirm that imaging criteria for benign and malignant biliary pathology need to be formally established and validated.
Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY 10032, USA.
Amrita
0000-0001-7989-0242
A
Sethi
Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY 10032, USA.
Theodore
0000-0002-3707-9758
T
Doukides
Division of Gastroenterology, North Shore-LIJ Health System, Manhasset, NY 11030, USA.
Divyesh V
DV
Sejpal
Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
Douglas K
DK
Pleskow
University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
Adam
A
Slivka
Gastroenterology, University of Utah SOM, Salt Lake City, UT 84119, USA.
Douglas G
DG
Adler
University of Colorado Hospital, Denver, CO 80045, USA.
Raj J
RJ
Shah
Department of Internal Medicine/Division of Gastroenterology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
Steven A
SA
Edmundowicz
Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan.
Takao
T
Itoi
Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA.
Bret T
BT
Petersen
Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY 10032, USA.
Frank G
FG
Gress
Division of Gastroenterology and Hepatology, Weill Cornell Medical Center, New York, NY 10021, USA.
Monica
M
Gaidhane
Division of Gastroenterology and Hepatology, Weill Cornell Medical Center, New York, NY 10021, USA.
Michel
0000-0003-0836-6114
M
Kahaleh