1. Development of MRI Projection Mapping System for Breast-Conserving Surgery in the Operating Room: Preliminary Clinical Results in Invasive Breast Cancer
- Author
-
Otoichi Nakata, Yuko Ichikawa, Maki Amano, Ryohei Kuwatsuru, Kuniaki Kojima, Shigeki Aoki, Kanako Ogura, Kazuyuki Ito, Toshiaki Kitabatake, Reiko Inaba, and Yutaka Ozaki
- Subjects
Adult ,Operating Rooms ,medicine.medical_specialty ,Supine position ,Article Subject ,medicine.medical_treatment ,Breast Neoplasms ,Mastectomy, Segmental ,Palpation ,General Biochemistry, Genetics and Molecular Biology ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,medicine ,Breast-conserving surgery ,Humans ,skin and connective tissue diseases ,Prospective cohort study ,Aged ,General Immunology and Microbiology ,medicine.diagnostic_test ,Tumor size ,business.industry ,Projection mapping ,General Medicine ,Middle Aged ,medicine.disease ,Magnetic Resonance Imaging ,030220 oncology & carcinogenesis ,Maximum intensity projection ,Medicine ,Female ,Radiology ,business ,Research Article - Abstract
Aim. To evaluate the feasibility of a newly developed prototype MRI projection mapping (PM) system for localization of invasive breast cancer before breast-conserving surgery. Methods. This prospective study enrolled 10 women with invasive breast cancer. MRI was performed in both prone and supine positions. The tumor location was drawn on the breast skin using palpation and sonography while referring to the prone MRI (i.e., a conventional method). A maximum intensity projection image generated from the supine MRI was projected using our PM system, and the tumor location was drawn. The PM system consisted of a projector and a camera and was used to measure the shape of the breast surface using the structured light method. Breast-conserving surgery was performed based on the conventional method. We compared the tumor size and location between the PM and conventional methods or pathology. Results. There were no significant differences in the maximum diameters of invasive cancers between the PM system and the conventional method or pathology. The maximum discrepancy in tumor location between the PM and conventional method was 3–8 mm. Conclusions. This PM system may support breast-conserving surgery by showing the tumor size and location on the breast surface.
- Published
- 2020