Visualizing ACNES and LUCNES With DIRT
Visualizing Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) and Lumbar Cutaneous Nerve Entrapment Syndrome (LUCNES) With Dynamic Infrared Thermography (DIRT)
1 other identifier
observational
50
1 country
1
Brief Summary
Anterior cutaneous nerve entrapment syndrome (ACNES) is caused by nerve entrapment in the abdominal wall. Recently de Weerd and Weum have suggested lumbar cutaneous nerve entrapment syndrome (LUCNES) as a name for a similar condition in the lower back. DIRT can potentially be used to identify the locations of perforators, thereby also indirectly identifying the location of nerve entrapment in ACNES and LUCNES, when a point of maximal pain corresponds to a hot spot. This study evaluates the location of hot spots on DIRT in relation to tender points and perforators visualized with CT angiography and color Doppler. In the ACNES patients, DIRT performed with a low-cost smartphone thermal camera will be compared to DIRT with a professional thermal camera to evaluate the usefulness of low-cost equipment to visualize the point of nerve entrapment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jan 2022
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 26, 2019
CompletedFirst Posted
Study publicly available on registry
October 15, 2021
CompletedStudy Start
First participant enrolled
January 1, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2023
CompletedJanuary 12, 2023
January 1, 2023
2 years
July 26, 2019
January 11, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Comparison tender spot coordinates and DIRT coordinates with professional thermocamera
Distance between coordinates (cm) to evaluate agreement
One day
Comparison tender spot coordinates and CT angiography coordinates
Distance between coordinates (cm) to evaluate agreement
One day
Comparison tender spot coordinates and color Doppler coordinates
Distance between coordinates (cm) to evaluate agreement
One day
Comparison hot spot coordinates smarphone/professional thermocamera
Evaulation if same hot spots are visible on thermal images from both cameras
One day
Study Arms (2)
ACNES patients
Patients referred to ultrasound-guided treatment for abdominal wall pain caused by ACNES
LUCNES patients
Patients referred to ultrasound-guided treatment for lower back pain caused by LUCNES
Interventions
Visualizing hot spots
Eligibility Criteria
25 patients with clinical signs of ACNES 25 patients with clinical signs of LUCNES
You may qualify if:
- ACNES and LUCNES patients referred for ambulatory ultrasound-guided treatment
You may not qualify if:
- Former reaction to contrast media used for CT angiography
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University Hospital of North Norway
Tromsø, 9038, Norway
Related Publications (8)
Lindsetmo RO, Stulberg J. Chronic abdominal wall pain--a diagnostic challenge for the surgeon. Am J Surg. 2009 Jul;198(1):129-34. doi: 10.1016/j.amjsurg.2008.10.027.
PMID: 19555786BACKGROUNDWeum S, de Weerd L. Perforator-Guided Drug Injection in the Treatment of Abdominal Wall Pain. Pain Med. 2016 Jul;17(7):1229-32. doi: 10.1093/pm/pnv011. Epub 2015 Dec 7.
PMID: 26814247BACKGROUNDWeum 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.
PMID: 27421763BACKGROUNDde 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.
PMID: 19700958BACKGROUNDde Weerd L, Weum S. The butterfly design: coverage of a large sacral defect with two pedicled lumbar artery perforator flaps. Br J Plast Surg. 2002 Apr;55(3):251-3. doi: 10.1054/bjps.2002.3791.
PMID: 12041981BACKGROUNDde Weerd L, Elvenes OP, Strandenes E, Weum S. Autologous breast reconstruction with a free lumbar artery perforator flap. Br J Plast Surg. 2003 Mar;56(2):180-3. doi: 10.1016/s0007-1226(03)00039-0.
PMID: 12791371BACKGROUNDWeum S, Lott A, de Weerd L. Detection of Perforators Using Smartphone Thermal Imaging. Plast Reconstr Surg. 2016 Nov;138(5):938e-940e. doi: 10.1097/PRS.0000000000002718. No abstract available.
PMID: 27783018BACKGROUNDCina 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.
PMID: 20392982BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sven Weum, PhD
University Hospital of North Norway
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 26, 2019
First Posted
October 15, 2021
Study Start
January 1, 2022
Primary Completion
December 31, 2023
Study Completion
December 31, 2023
Last Updated
January 12, 2023
Record last verified: 2023-01
Data Sharing
- IPD Sharing
- Will not share