Image guidance with image overlay for laparoscopic surgery

• Research type

  Research Study

• Full title

  Image guidance with image overlay for laparoscopic surgery

• IRAS ID

  158321

• Contact name

  Brian Davidson

• Contact email

  b.davidson@ucl.ac.uk

• Sponsor organisation

  University College London

• Clinicaltrials.gov Identifier

  Z6364106/2014/06/46, UCL Data Protection Registration Number

• Duration of Study in the UK

  0 years, 11 months, 31 days

• Research summary

  During key hole liver operation (laparoscopic liver resection), some internal structures may be difficult to distinguish from one another or difficult to see as they are deep within the organ. An example is identifying the vessels in the liver (which lie deep within the liver and are not visible on the surface of the liver, which is the part seen by the surgeon). Clear identification of structures will help avoid injury to important structures which will benefit the patient. One way of achieving this is to superimpose the images obtained by scans (which can easily distinguish different structures) prior to the operation (pre­operative images) on to video laparoscopic images obtained during actual operation so that the surgeon can identify the tissue. However, the main drawback of this is that the organs can be deformed by pushing and pulling of the organs, normal breathing movements of the patient, and insufflation of gas during laparoscopy making it difficult to superimpose the pre­operative images on to the live images (as the pre­operative images are captured while the person is holding their breath without traction or pressure from gas).
  The aim of this research is to investigate whether an integrated system using tracking devices, image capturing devices, and computerised algorithm that deforms the liver can facilitate the overlap of the images. Other than the computerised algorithm, all the other components have been certified for use and will be used for their intended use.

• REC name

  London - Stanmore Research Ethics Committee

• REC reference

  14/LO/1264

• Date of REC Opinion

  19 Sep 2014

• REC opinion

  Further Information Favourable Opinion