Review for 10.1186/s12876-020-01304-0 (2020)

Reviewer ’s report  
 
Title: Utilization of a new technology of 3D biliary CT for ERCP -related procedures: a case 
report  
 
Version: 0 Date: 16 Mar 2020  
 
Reviewer: Akira Imoto  
 
Reviewer's report:  
 
Major  
 
・ What was technically difficult in this case? Coul dn't the guidewire be guided to B6 or B8? It's 
hard to tell how useful the 3D image was because it didn't list what was difficult.  
 
・ 3DCT and MRCP are similar, but what are the advantages of 3DCT compared to MRCP? 
There are reports on MRCP, so I think it i s necessary to cite and discuss them.  
 
・ When viewed on a monitor as shown in Fig 4 (b), can it be moved in 3D? Anything better 
than printing out and pasting on should be noted.  
 
Minor  
 
・ "h" in the third line of p7 is unnecessary.  
 
Are the methods appropriate and well described?  
If not, please specify what is req uired in your comments to the authors.  
 
Yes 
 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
 
Yes 
 
Are the conclusions drawn adequately supported by the data shown?  
If not, please explain in your comments to the authors.  
 
Yes 
 
 
 
 
 
Are you able to assess any statistics in the manus cript or would you recommend an 
additional statistical review?  
If an additional statistical review is recommended, please specify what aspects req uire further 
assessment in your comments to the editors.  
 
Not relevant to this manuscript  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
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below. If your reply is yes to any, please give details be low. 
 
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