Hyperspectral imaging in wound care: A systematic review

Abstract

Multispectral and hyperspectral imaging (HSI) are emerging imaging techniques with the potential to transform the way patients with wounds are cared for, but it is not clear whether current systems are capable of delivering real‐time tissue characterisation and treatment guidance. We conducted a systematic review of HSI systems that have been assessed in patients, published over the past 32 years. We analysed 140 studies, including 10 different HSI systems. Current in vivo HSI systems generate a tissue oxygenation map. Tissue oxygenation measurements may help to predict those patients at risk of wound formation or delayed healing. No safety concerns were reported in any studies. A small number of studies have demonstrated the capabilities of in vivo label‐free HSI, but further work is needed to fully integrate it into the current clinical workflow for different wound aetiologies. As an emerging imaging modality for medical applications, HSI offers great potential for non‐invasive disease diagnosis and guidance when treating patients with both acute and chronic wounds.

VNIR–NIR hyperspectral imaging fusion targeting intraoperative brain cancer detection

“…Hyperspectral imaging (HSI) is an emerging, non-contact, non-ionizing, label-free, and minimally invasive sensing technology widely employed in many applications, such as remote sensing 11 , food quality assessment 12 , defense and security 13 , among others 14 . Particularly, the use of HSI has been investigated in several medical applications 15 , such as oncology 16 , dermatology 17 , ophthalmology 18 , endoscopy 19 , wound care 20 , cervical cancer 21 , digital and computational pathology 22 , biomarkers discovery and validation 23 , tissue perfusion measurement 24 , gastroenterology 22 , etc. Hyperspectral (HS) images are composed by hundreds of spectral channels, conforming a continuous spectrum in each pixel which allows the differentiation of the materials which are present in the scene based in their chemical composition 25 .…”

Application of Hyperspectral Imaging for Maturity and Soluble Solids Content Determination of Strawberry With Deep Learning Approaches

“…By integrating the computer vision and spectroscopy techniques, hyperspectral imaging has been utilized as a non-destructive and rapid analytical technique in various fields, such as nanoscale materials (Dong et al, 2018), plant seeds (Feng et al, 2019a), agricultural and food products (Jia et al, 2020), horticultural products (Lu et al, 2020), biological tissues (Rehman and Qureshi, 2020), wound care (Saiko et al, 2020), and fruits damage (He et al, 2021). Hyperspectral imaging has also been proved as an effective analytical technique for the fruit quality and safety inspection.…”

Hyperspectral imaging for perioperative monitoring of microcirculatory tissue oxygenation and tissue water content in pancreatic surgery — an observational clinical pilot study

“…Hyperspectral imaging (HSI) combines spectroscopy with imaging and provides spatially resolved biochemical and physiologic information of imaged tissues including oxygenation, haemoglobin distribution, and water content. HSI technology enables non-contact, non-invasive real-time tissue microcirculation analysis, making it a rapidly developing imaging modality for medical applications such as image-guided surgery or wound diagnostics (Clancy et al, 2020 ; Lu & Fei, 2014 ; Saiko et al, 2020 ).…”