Sunday, 12 February 2017

Intra oral videography-'Camera Obscuras'

I embarked on a search to find a decent video camera that will enable me to capture close up footage of some of the intra oral procedures such as preparation of teeth for fillings and root canal treatments. The main idea is to record the procedure and show it to my tutors in order to gain feedback and also possibly learn from mistakes.

I had few options to choose from. The options varied from affordable to very expensive. As a student, I have a limited budget on how much I want to invest on such a device.

The options are
1. Head mounted or Mounted independently action cameras such as Go Pro Hero5 /Black or Sony FDR-X 1000 V
2. Loupe mounted cameras such as Futudent / ioCam/Loupe cam/MiniCam/Surgicam
3. Dental lamp/ Chair mounted camera such as Third Eye HD Cam with DVR
4. Integrated Dental Cameras into the Dental chairlight- Systems such as Elio Microscope/ G-Comm
5. Custom made Rage Cameras
6. Medically approved Cameras such as Sony DXC-C33 or Medically non approved Sony HXR-MC1 both of which are ideal but may have been discontinued by the manufacturer.
7. Ceiling mounted cameras.

My take on these cameras:

Go Pro Hero 5 is promising little gadget and comes with an ecosystem of accessories. It can be pretty much used anywhere with the proper accessories. It does deliver 4K videos and is wifi compatible. Its competitor Sony FDR-X 1000V has a better image quality than the Go Pro Hero5 but doesn't offer a variety of accessories. Price tag is around £400. They both can be mounted on the chair head light or handle. The Sony comes with a  useful full command Live-View Remote (wrist based) and multi camera control. (Android App). I don't think any zooming or magnification is possible on these cameras. I suppose a Go Pro accessory should  also be able to mount a Sony Cam.

Loupe mounted camera comes with a price tag of £1600-£3600. They offer fancy software and cloud storage.They also offer upgrade to wireless and are wifi compatible.  Some of them offer 2x to 3x magnification. They have the positive side of recording the video from the surgeon's view which can not be achieved in any other method but comes with the disadvantage of heat that can generated overtime, not to mention that any head movement will deviate the video from the field of vision necessitating time consuming editing with software.

I like the idea of chair-mounted camera such as Third Eye HD camera.  It comes with a price tag of £1600-£3000. They need minimal installation and offers limited zoom and needs a standalone video recorder which comes with an editing software. It is also handy if the dentist wished to project the video using a projector  or can transmit live on multiple screens.

Advanced integrated camera into the dental chair headlight is the one I will recommend for the future for any dentist investing on a brand new set up for the practice. They are expensive.

Go Pro camera  can be modified for dentistry and some some are sold by Ragecams on ebay.

I also like the Sony DXC-C33 and Sony HXR-MC1 but I am not sure if they are still available in the market.  The former records through a recorder and a telephoto lens can be attached while the latter offers 10x optical zoom and records on a memory stick. Medically approved camera are useful when the surgeon needs a sterile set up.

Buyers must be aware of the terms magnification and optical zoom. Both the terms can be misleading. For example a camera with 5X optical zoom is only a zoom ratio and will probably only offer less than 5times magnification (depending on the focal length). The key terms to look are megapixels and focal length.

ENT specialists, General Surgeons, Cardio thoracic surgeons are all using video cameras yet finding one to suit my needs is long -winded.

Ceiling mounted cameras are also useful but needs careful installation, handling and of course are expensive.

I can only imagine what expensive gadgets the moviemakers are working with. Really Impressive!!

I must admit sometimes I suffer from 'confirmatory bias'! At the end of all of this I am fancying the Sony FDR-X 1000V so that I can record my inventions in the Kitchen!

References:
 Google search for terms 'dental cameras', 'dental video cameras', 'loupe mounted cameras', 'surgical cams', ' action cams', 'chair-mounted cameras'



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