Dynamic Infrared Thermography as an Alternative to CT Angiography
NCT ID: NCT02806518
Last Updated: 2016-06-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
25 participants
OBSERVATIONAL
2009-04-30
2012-04-30
Brief Summary
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Detailed Description
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DIRT is an imaging method that does not require ionizing radiation or contrast injection. The study evaluates if DIRT can be an alternative to CTA in perforator mapping. The study is performed in a hospital where DIRT and CTA have been established preoperative imaging methods that have been used for several years as routine examinations for all DIEP breast reconstruction patients.
25 patients scheduled for secondary breast reconstruction with a DIEP flap are included. Preoperatively, the lower abdomen is examined with hand-held Doppler, DIRT and CTA. Arterial Doppler sound locations are marked on the skin.
DIRT examination involves rewarming of the abdominal skin after a mild cold challenge. The locations of hot spots on DIRT are compared with the arterial Doppler sound locations. The rate and pattern of rewarming of the hot spots are analyzed. Multiplanar CT reconstructions are used to see if hot spots are related to perforators on CTA and intraoperative findings.
When intraoperative findings confirm that a useful perforator is located at the same localization as indicated with DIRT, this perforator is used for DIEP breast reconstruction. Postoperatively the surgical outcome and possible complications related to the selected perforator are evaluated.
Conditions
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Study Design
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PROSPECTIVE
Study Groups
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Women scheduled for DIEP
Women scheduled for DIEP breast reconstruction after mastectomy due to breast cancer are examined with DIRT, hand-held Doppler and CTA
DIRT
An infrared camera is used to capture video sequences of thermal images before, during and after exposure of the lower abdomen to a cold challenge.
Interventions
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DIRT
An infrared camera is used to capture video sequences of thermal images before, during and after exposure of the lower abdomen to a cold challenge.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
25 Years
75 Years
FEMALE
No
Sponsors
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University of Tromso
OTHER
University Hospital of North Norway
OTHER
Responsible Party
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Principal Investigators
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Sven Weum, MD PhD
Role: PRINCIPAL_INVESTIGATOR
Associate Professor
Locations
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University Hospital of North Norway
Tromsø, Trom, Norway
Countries
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References
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Cina A, Salgarello M, Barone-Adesi L, Rinaldi P, Bonomo L. Planning breast reconstruction with deep inferior epigastric artery perforating vessels: multidetector CT angiography versus color Doppler US. Radiology. 2010 Jun;255(3):979-87. doi: 10.1148/radiol.10091166. Epub 2010 Apr 14.
Mathes DW, Neligan PC. Current techniques in preoperative imaging for abdomen-based perforator flap microsurgical breast reconstruction. J Reconstr Microsurg. 2010 Jan;26(1):3-10. doi: 10.1055/s-0029-1244806. Epub 2009 Dec 18.
Blondeel PN, Beyens G, Verhaeghe R, Van Landuyt K, Tonnard P, Monstrey SJ, Matton G. Doppler flowmetry in the planning of perforator flaps. Br J Plast Surg. 1998 Apr;51(3):202-9. doi: 10.1016/s0007-1226(98)80010-6.
de Weerd L, Mercer JB, Weum S. Dynamic infrared thermography. Clin Plast Surg. 2011 Apr;38(2):277-92. doi: 10.1016/j.cps.2011.03.013.
de Weerd L, Weum S, Mercer JB. The value of dynamic infrared thermography (DIRT) in perforatorselection and planning of free DIEP flaps. Ann Plast Surg. 2009 Sep;63(3):274-9. doi: 10.1097/SAP.0b013e3181b597d8.
Weum S, Mercer JB, de Weerd L. Evaluation of dynamic infrared thermography as an alternative to CT angiography for perforator mapping in breast reconstruction: a clinical study. BMC Med Imaging. 2016 Jul 15;16(1):43. doi: 10.1186/s12880-016-0144-x.
Other Identifiers
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2009/17(REK)
Identifier Type: -
Identifier Source: org_study_id
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