Stimulated Raman histology for rapid and accurate intraoperative diagnosis of CNS tumors: prospective blinded study

Author:

Eichberg Daniel G.1,Shah Ashish H.1,Di Long1,Semonche Alexa M.1,Jimsheleishvili George1,Luther Evan M.1,Sarkiss Christopher A.1,Levi Allan D.1,Gultekin Sakir H.2,Komotar Ricardo J.13,Ivan Michael E.13

Affiliation:

1. Departments of Neurological Surgery and

2. Pathology, University of Miami Miller School of Medicine; and

3. Sylvester Comprehensive Cancer Center, Miami, Florida

Abstract

OBJECTIVEIn some centers where brain tumor surgery is performed, the opportunity for expert intraoperative neuropathology consultation is lacking. Consequently, surgeons may not have access to the highest quality diagnostic histological data to inform surgical decision-making. Stimulated Raman histology (SRH) is a novel technology that allows for rapid acquisition of diagnostic histological images at the bedside.METHODSThe authors performed a prospective blinded cohort study of 82 consecutive patients undergoing resection of CNS tumors to compare diagnostic time and accuracy of SRH simulation to the gold standard, i.e., frozen and permanent section diagnosis. Diagnostic accuracy was determined by concordance of SRH-simulated intraoperative pathology consultation with a blinded board-certified neuropathologist, with official frozen section and permanent section results.RESULTSOverall, the mean time to diagnosis was 30.5 ± 13.2 minutes faster (p < 0.0001) for SRH simulation than for frozen section, with similar diagnostic correlation: 91.5% (κ = 0.834, p < 0.0001) between SRH simulation and permanent section, and 91.5% between frozen and permanent section (κ = 0.894, p < 0.0001).CONCLUSIONSSRH-simulated intraoperative pathology consultation was significantly faster and equally accurate as frozen section.

Publisher

Journal of Neurosurgery Publishing Group (JNSPG)

Subject

Genetics,Animal Science and Zoology

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