Adobe Photoshop combined with Digimizer software for endoscopic submucosal dissection specimen measurement and restoration / 西安交通大学学报(医学版)

ABSTRACT

Objective: To explore the accurate measurement of endoscopic submucosal dissection (ESD) resected specimens of the digestive tract and the method of drawing the restoration map. Methods:From February to September 2018, 54 cases of digestive tract mucosa specimens were removed by ESD in the Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University. After standardized fixing, cutting, slide making and reading, Adobe Photoshop (PS) software was used to synthesize the slides and gross images. Synthesis data were measured using Digitimizer software, and the restoration map was drawn. Results: There were two types of restoration map drawing results. One was the surface plane distribution map of the lesion (that is, the ordinary restoration map) and 54 cases of this group were drawn with standard progress. The other was the section map of the lesion, and one case of colorectal adenoma with high-grade lesions was used to map and measure the distribution of the lesion. The size of 54 ESD specimens was measured, the minimum was 11.0 mm, the maximum was 93.5 mm, the median size was 33.2 mm, the lesion size was 0.9-45.7 mm, and the median size was 23.3 mm. The horizontal margin (PHM) showed positive in 9 cases, of which 4 cases were positive in early-stage cancer, and the negative margin showed a distance of 0.2-11.5 mm and a median position of 5.9 mm. Conclusion: This study combines PS's powerful image synthesis technology and Digimizer's professional image measurement technology to solve the computational ratio problem in ESD restoration map production process, and provides a practical reference method for drawing various complex restoration maps.