Machine Learning Analysis of Two-photon Fluorescence Microscopy of Dermatologic Biopsies

Purpose

The goal of this study is to investigate the ability of a machine learning model to evaluate two-photon fluorescence microscopy images of dermatologic biopsies at point of care. The main question it aims to answer is: • How well do two-photon fluorescence images of biopsies taken in a clinic and evaluated by a machine learning model agree with conventional histology?

Conditions

  • Basal Cell Carcinoma of Skin
  • Squamous Cell Carcinoma (Skin)

Eligibility

Eligible Ages
All ages
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Punch, excisional or shave biopsy specimen

Exclusion Criteria

  • Biopsy indication includes melanoma or dysplastic/atypical nevus - Excision thickness of less than 1 mm - Excision longest dimension less than 2 mm - Excision performed as multiple pieces in a single specimen container

Study Design

Phase
N/A
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Diagnostic
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
TPFM imaging of biopsy
Specimens will be imaged with TPFM and diagnosed using a machine learning model
  • Device: Two photon microscopy imaging
    Ex vivo tissues will be imaged with two-photon microscopy and analyzed with machine learning for diagnosis

Recruiting Locations

Rochester Dermatologic Surgery
Victor, New York 14654
Contact:
Sherrif Ibrahim, M.D.-Ph.D.
585-222-1400
dr.ibrahim@rochesterdermsurgery.com

More Details

Status
Recruiting
Sponsor
University of Rochester

Study Contact

Michael Giacomelli, Ph.D
5852766260
mgiacome@ur.rochester.edu

Detailed Description

This study will image biopsy specimens at point of care using two-photon fluorescence microscopy (TPFM) and then assess how well the images predict the eventual clinical diagnosis using a machine learning model. Because two-photon images can be acquired from small biopsy specimens within minutes of excision, they could potentially be used to immediately diagnose patients, but the accuracy of TPFM for various skin conditions is unknown. Individual biopsy specimens in a dermatology clinic will be imaged using TPFM shortly after biopsy procedures. Immediately following imaging, a machine learning model will evaluate the TPFM images then compute a confidence score for a diagnosis of basal cell carcinoma (BCC), squamous cell carcinoma, and non-cancer. The relative confidence in each diagnosis will be compared, and if sufficient confidence is achieved, the model will render a diagnosis or else flag the specimen as indeterminate for manual pathologist review. This workflow will evaluate the use of ML + TPFM to perform point of care diagnosis of skin lesions. Following TPFM imaging, the specimen will be submitted for histological processing, which will guide actual patient treatment. Following conclusion of patient treatment, the resulting histology slides will be scanned for comparison and the final patient diagnosis recorded. Images of the histology slides will be read by a pathologist to establish a gold-standard diagnosis. The official diagnosis and the diagnosis from the collaborating pathologist will be compared. Patient treatment will still be decided by conventional histopathology. TPFM will not be used to change treatment.