scholarly journals Thermal, Hyperspectral, and Laser Doppler Imaging: Non-Invasive Tools for Detection of The Deep Inferior Epigastric Artery Perforators—A Prospective Comparison Study

2021 ◽  
Vol 11 (10) ◽  
pp. 1005
Author(s):  
Sebastian P. Nischwitz ◽  
Hanna Luze ◽  
Marlies Schellnegger ◽  
Simon J. Gatterer ◽  
Alexandru-Cristian Tuca ◽  
...  

Perforator flaps have become one of the leading procedures in microsurgical tissue transfer. Individual defects require a tailored approach to guarantee the most effective treatment. A thorough understanding of the individual vascular anatomy and the location of prominent perforators is of utmost importance and usually requires invasive angiography or at least acoustic Doppler exploration. In this study, we aimed at evaluating different non-invasive imaging modalities as possible alternatives for perforator location detection. After a cooling phase, we performed thermal, hyperspectral and Laser Doppler imaging and visually evaluated a possible detection of the perforator for a period of five minutes with an image taken every minute. We identified the most prominent perforator of the deep inferior epigastric artery by handheld acoustic Doppler in 18 patients. The detected perforator locations were then correlated. Eighteen participants were assessed with six images each per imaging method. We could show a positive match for 94.44%, 38.89%, and 0% of patients and 92.59%, 25.93%, and 0% of images for the methods respectively compared to the handheld acoustic Doppler. Sex, age, abdominal girth, and BMI showed no correlation with a possible visual detection of the perforator in the images. Therefore, thermal imaging can yield valuable supporting data in the individualized procedure planning. Future larger cohort studies are required to better assess the full potential of modern handheld thermal imaging devices.

10.12737/2906 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 1-6
Author(s):  
Гельт ◽  
T. Gelt ◽  
Борсуков ◽  
A. Borsukov

Currently, it is necessary to find additional reliable technique (and without prejudice to the health of the patient with diffuse liver disease) to determine the stage of the disease, to quickly evaluate the degree of fi-brosis, including dynamics, as well as to predict the further course of the disease. It is known that changes in patients with diffuse liver disease at the vascular level are systemic in nature. Identification of these changes may help predict disease course, the possibility of the therapy revising. Clinical perspectives, the benefits of using non-invasive laser Doppler imaging as a method of diagnosis of the microvasculature in patients with diffuse liver diseases are discussed in this paper. 40 patients with alcoholic liver cirrhosis, with steatohepatitis mixed etiology, viral hepatitis "B" and "C" of varying degrees of activity, which conducted the study of microcirculation using non-invasive laser Doppler were examined.


Burns ◽  
2018 ◽  
Vol 44 (1) ◽  
pp. 124-133 ◽  
Author(s):  
Christopher Wearn ◽  
Kwang Chear Lee ◽  
Joseph Hardwicke ◽  
Ammar Allouni ◽  
Amy Bamford ◽  
...  

1994 ◽  
Vol 19 (3) ◽  
pp. 295-300 ◽  
Author(s):  
S. BORNMYR ◽  
M. ARNER ◽  
H. SVENSSON

Laser Doppler imaging is a new, non-invasive technique allowing the spatial distribution and the temporal variation of the skin blood flow to be monitored. A mean blood flow value over an area, such as the finger-tip in the present study, can also be calculated. Recordings from 12 patients with a sutured ulnar artery following trauma did not significantly differ from those obtained in 14 controls. Four patients with a ligated ulnar artery, however, showed a slower restitution of blood flow values after cold provocation. All sutured ulnar arteries were found to be patent, which confirms that microvascular reconstruction of an injury to the ulnar artery at the wrist is worthwhile.


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