Joe K Gerald, Julia M Fisher, Mark A Brown, Conrad J Clemens, Melissa A Moore, Scott C Carvajal, Donna Bryson, Nikki Stefan, Dean Billheimer, Lynn B Gerald
School-supervised use of a once-daily inhaled corticosteroid regimen: A cluster randomized trial
The Journal of allergy and clinical immunology
visualising course complex perianal fistula imaging difficult postulated threedimensional 3d models perianal fistulas improve understanding perianal pathology contribute surgical decisionmaking might even improve future outcomes surgical treatment aim current study investigate accuracy 3dprinted models perianal fistulas compared magnetic resonance imaging mri mri scans 15 patients transsphincteric intersphincteric fistulas selected assessed experienced abdominal colorectal radiologist standardised method creating 3dprinted anatomical model cryptoglandular perianal fistula developed technical medical physicist surgeon training special interest 3d printing manual segmentation fistula external sphincter performed trained technical medical physicist anatomical models 3d printed 11 ratio assessed two colorectal surgeons 3dprinted models scanned 3d scanner volume 3dprinted model compared manual segmentation interrater reliability statistics calculated consistency radiologist assessed mri scans surgeons assessed 3dprinted models assessment mri considered gold standard agreement two surgeons assessed 3d printed models also determined consistency radiologist surgeons almost perfect classification 087 087 substantial complexity 073 074 location internal orifice 073 073 moderate percentage involved external anal sphincter transsphincteric fistulas icc 063 icc 052 agreement two surgeons substantial classification 073 complexity 074 location internal orifice 075 percentage involved external anal sphincter transsphincteric fistulas icc 077 3dprinted anatomical models perianal fistulas accurate reflection mri research needed determine added value 3dprinted anatomical models preoperative planning education