Non-invasive optical methods for microcirculatory assessment in experiment and in clinical practice: Orthogonal polarization spectral (OPS) imaging and Sidestream dark-field (SDF) imaging
Neinvazivní optické metody k posouzení mikrocirkulace v experimentu a klinické praxi – Orthogonal polarization spectral (OPS) imaging a Sidestream dark-field (SDF) imaging
Mikrocirkulace má za fyziologických i patofyziologických okolností klíčovou úlohu v interakcích mezi krví a tkáněmi. Přes prokázanou zásadní roli v patofyziologii a vývoji řady akutních i chronických onemocnění včetně hypertenze, diabetu či sepse jsou naše možnosti přímé vizualizace a rychlého funkčního vyhodnocení mikrocirkulační sítě v reálné klinické praxi velmi omezené. Orthogonal polarization spectral (OPS) imaging a vývojově ještě vylepšená metoda Sidestream dark-field (SDF) imaging jsou relativně nové optické neinvazivní technologie inkorporované do lehce ovladatelné příruční sondy s možností vyšetřit a vizualizovat mikrocirkulaci slizničních povrchů včetně podjazykové krajiny u člověka. Principy obou metod, výsledky validačních studií, současné možnosti využití v experimentu a v klinické praxi včetně výhod a technických omezení jsou probírány v této práci.
Klíčová slova:
mikrocirkulace – orthogonal polarization spectral imaging (OPS) – sidestream dark-field imaging (SDF)
Authors:
Z. Turek; R. Pařízková; V. Černý
Authors‘ workplace:
Klinika anesteziologie, resuscitace a intenzivní medicíny Fakultní nemocnice Hradec Králové
Published in:
Anest. intenziv. Med., 18, 2007, č. 4, s. 231-235
Category:
Intenzive Care Medicine - Comprehensive Report
Overview
Microcirculation plays an essential role in the interaction between the blood and target tissues. Despite its evident importance in the pathophysiology and development of numerous acute and chronic diseases such as hypertension, diabetes or sepsis, currently available methods allowing direct visualization of the microcirculatory network and its assessment in clinical practice are very limited. Orthogonal polarization spectral (OPS) imaging and its improved successor Sidestream dark-field (SDF) imaging are relatively new optical non-invasive technologies incorporated in a hand-held examination probe for visualization of the mucosal surface microcirculation including the human sublingual area. The basic principles of these methods, an appraisal of the validation studies, the current options of experimental and clinical applications and the advantages and technical limitations of the methods are discussed in this review.
Key words:
microcirculation – orthogonal polarization spectral (OPS) imaging – sidestream dark-field (SDF) imaging
Labels
Anaesthesiology, Resuscitation and Inten Intensive Care MedicineArticle was published in
Anaesthesiology and Intensive Care Medicine
2007 Issue 4
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