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WINNER - Dr. Mark Ryan - Best of the Best in Pediatric Surgery 2025
With Dr. Mark Ryan
Part of
Pectus Carinatum 16 items
Educational content from recorded physician discussions — not medical advice. Talk to your (or your child's) care team about your situation.
Video
Minimally Invasive Repair of Pectus Carinatum
5 min · Published Nov 2019
Video
Pectus Arcuatum a Pectus Unlike any Other
51 s · Published Jan 2024
Video
Pectus - Surgical Approaches for Failed Repair
44 min · Published Nov 2018
Podcast
Journal of Pediatric Surgery Article Review: September 2023
13 min · Published Mar 2024
Video
Pectus Deformities: Update Course 2015
34 min · Published Nov 2018
Podcast
Chest Wall Deformities with Dr. Robert Kelly
46 min · Published Jan 2017
Only a few other public items share this expert — go deeper there →
Video
Clinical & Research Update: Renal Tumors with Drs. Ethan Smith, Lindsay Haacker, Michael Daugherty, and Meera Kotagal
71 min · Published Sep 2026
Video
Clinical & Research Update: Neuroblastoma with Drs. Katherine Somers, Cara Morin, Juan Gurria, and Meera Kotagal
67 min · Published Sep 2026
Video
Clinical & Research Update: Sarcoma w/ Drs. Roshni Dasgupta, Joseph Pressey, Arthur Meyer, Luke Pater
66 min · Published Sep 2026
Video
2026 Laparoscopic Pediatric Hernia Repair
123 min · Published Jun 2026
Video
Beyond the Spectrum: Diagnosis, Myths & Management - Caitlin Couch & Leslie Lopez - APP Conference 2026
50 min · Published May 2026
Video
Dysautonomia: Navigating the Journey - Martha Willis - APP Conference 2026
55 min · Published May 2026
What the experts said
Volume rendering uses light reflection and shading techniques to create the illusion of depth from stacked CT slice data
Volume rendering cannot select individual structures or edit them independently
Segmentation involves selecting specific pixels for the structure of interest for each slice, allowing individual structure selection
Volume rendering provides very high level of detail but when two objects are similar density, it can be hard to tell them apart
Skeletal structures are fairly easy to isolate with volume rendering since they're much higher density than everything else
Volume rendering can be used to measure the angle of osteotomy needed on the sternum and distance of cut from manubrium for bar placement planning
The main advantage of volume rendering is speed - can model very rapidly even in complex cases like conjoined twins
Creating and editing segmentation models can be very time consuming
Total Segmentator extension for 3D Slicer can segment 106 different structures in the body within 75 seconds
3D Slicer is a free program for medical imaging
Combined volume rendering and segmentation can be used to create vascular roadmaps with anatomic landmarks for planning pancreatic transection adjacent to neoplasm
Combined imaging helped map hardware placement for a 17-year-old girl with severe pectus carinatum and was useful for communicating procedure steps with OR staff
Leap Motion motion capture device uses infrared cameras to map hand movements and can control 3D images as with a mouse
The laptop with motion capture can be connected to the OR display system for intraoperative image control
Looking at images in virtual reality can be helpful for really complex problems like conjoined twins
The ability to see depth with volume rendering images in VR makes it easier to make sense of anatomy and removes limitation to standard imaging planes
Medical Holodeck software is used for viewing VR images either individually or in collaboration with partners
Newer VR devices like Quest 3 or Apple Vision Pro have video pass-through capabilities allowing overlay of 3D images directly onto the patient for marking or pre-operative planning
Segmentations can be exported from 3D Slicer as STL files for 3D printing
Consumer grade 3D printers can print complex shapes using a variety of materials with dissolvable support materials to limit post-processing cleanup
3D printing enables creation of tailored simulation tools for complex congenital problems, such as a neonatal hemothorax model created from a CT scan
The 3D Slicer software has been around for 10-15 years and is free
The Medical Holodeck VR software is made by a company in Switzerland
The Leap Motion device costs approximately $100
Proprietary systems from companies like Ethicon charge around $500 per patient or per scan
Volume rendering can be turned around in a few minutes to create a spinning model for OR reference or communication with OR staff