Tetsuo Ikeda1,2, Shinji Okano3, Naotaka Hashimoto2, Koichi Kimura2, Kensuke Kudo2, Ryosuke Tsutsumi2, Shun Sasaki4, Junji Kawasaki4, Yu Miyashita4, Hiroya Wada2. 1. Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan. 2. Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan. 3. Department of Pathology, Fukuoka Dental College, Fukuoka, Japan. 4. Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Abstract
BACKGROUND/ PURPOSE: Computer-assisted tissue imaging and analytical techniques were used to clarify the histomorphological structure of hepatic connective tissue as a practical guide for surgeons. METHODS: Approximately 5000 histological slides were prepared from liver specimens of five autopsied patients. Three-dimensional (3D) reconstruction was performed and subjected to computer imaging analysis. Scanning electron microscopy was also performed on the liver specimens. RESULTS: The 3D reconstructed images revealed the running form of the vasculature and the relationship between the hepatic lobule and connective tissue. The hepatic capsule or portal pedicle was consistently located at the periphery of the hepatic lobules. An artificial intelligence random forest approach clearly segmented hepatic cells, type I collagen (CF), type III collagen (RF), and other cells. The hepatic lobule, portal region, and hepatic capsule were significantly distinguished based on CF and RF occupancy. The capsule directly covering the liver lobule with an RF concentration up to 87% was provisionally named the proper hepatic capsule. The existence of a proper hepatic ligament with distinct occupation rates of CF and RF was also suggested. CONCLUSIONS: The identified proper hepatic capsule and ligament can be important markers for demarcating the dissecting layer during surgical procedures.
BACKGROUND/ PURPOSE: Computer-assisted tissue imaging and analytical techniques were used to clarify the histomorphological structure of hepatic connective tissue as a practical guide for surgeons. METHODS: Approximately 5000 histological slides were prepared from liver specimens of five autopsied patients. Three-dimensional (3D) reconstruction was performed and subjected to computer imaging analysis. Scanning electron microscopy was also performed on the liver specimens. RESULTS: The 3D reconstructed images revealed the running form of the vasculature and the relationship between the hepatic lobule and connective tissue. The hepatic capsule or portal pedicle was consistently located at the periphery of the hepatic lobules. An artificial intelligence random forest approach clearly segmented hepatic cells, type I collagen (CF), type III collagen (RF), and other cells. The hepatic lobule, portal region, and hepatic capsule were significantly distinguished based on CF and RF occupancy. The capsule directly covering the liver lobule with an RF concentration up to 87% was provisionally named the proper hepatic capsule. The existence of a proper hepatic ligament with distinct occupation rates of CF and RF was also suggested. CONCLUSIONS: The identified proper hepatic capsule and ligament can be important markers for demarcating the dissecting layer during surgical procedures.
Authors: Ignacio Arganda-Carreras; Verena Kaynig; Curtis Rueden; Kevin W Eliceiri; Johannes Schindelin; Albert Cardona; H Sebastian Seung Journal: Bioinformatics Date: 2017-08-01 Impact factor: 6.937
Authors: Deeksha Malhan; Matthias Muelke; Sebastian Rosch; Annemarie B Schaefer; Felix Merboth; David Weisweiler; Christian Heiss; Ignacio Arganda-Carreras; Thaqif El Khassawna Journal: Front Endocrinol (Lausanne) Date: 2018-11-21 Impact factor: 5.555