YuanZheng Hou1, LiChao Ma2, RuYuan Zhu3, XiaoLei Chen4. 1. Department of Neurosurgery, Chinese PLA General Hospital Hainan Branch, Sanya, China. 2. Department of Endocrinology, Chinese PLA General Hospital, Beijing, China. 3. Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China. 4. Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China. Electronic address: chxlei@mail.sysu.edu.cn.
Abstract
OBJECTIVE: A low-cost, time-efficient technique that could localize hypertensive hematomas in the basal ganglia would be beneficial for minimally invasive hematoma evacuation surgery. We used an iPhone to achieve this goal and evaluated its accuracy and feasibility. METHODS: We located basal ganglia hematomas in 26 patients and depicted the boundaries of the hematomas on the skin. To verify the accuracy of the drawn boundaries, computed tomography (CT) markers surrounding the depicted boundaries were attached to 10 patients. The deviation between the CT markers and the actual hematoma boundaries was then measured. In the other 16 patients, minimally invasive endoscopic hematoma evacuation surgery was performed according to the depicted hematoma boundary. The deflection angle of the actual trajectory and deviation in the hematoma center were measured according to the preoperative and postoperative CT data. RESULTS: There were 40 CT markers placed on 10 patients. The mean deviation of these markers was 3.1 mm ± 2.4. In the 16 patients who received surgery, the deflection angle of the actual trajectory was 4.3° ± 2.1. The deviation in the hematoma center was 5.2 mm ± 2.6. CONCLUSIONS: This new method can locate basal ganglia hematomas with a sufficient level of accuracy and is helpful for minimally invasive endoscopic hematoma evacuation surgery.
OBJECTIVE: A low-cost, time-efficient technique that could localize hypertensive hematomas in the basal ganglia would be beneficial for minimally invasive hematoma evacuation surgery. We used an iPhone to achieve this goal and evaluated its accuracy and feasibility. METHODS: We located basal ganglia hematomas in 26 patients and depicted the boundaries of the hematomas on the skin. To verify the accuracy of the drawn boundaries, computed tomography (CT) markers surrounding the depicted boundaries were attached to 10 patients. The deviation between the CT markers and the actual hematoma boundaries was then measured. In the other 16 patients, minimally invasive endoscopic hematoma evacuation surgery was performed according to the depicted hematoma boundary. The deflection angle of the actual trajectory and deviation in the hematoma center were measured according to the preoperative and postoperative CT data. RESULTS: There were 40 CT markers placed on 10 patients. The mean deviation of these markers was 3.1 mm ± 2.4. In the 16 patients who received surgery, the deflection angle of the actual trajectory was 4.3° ± 2.1. The deviation in the hematoma center was 5.2 mm ± 2.6. CONCLUSIONS: This new method can locate basal ganglia hematomas with a sufficient level of accuracy and is helpful for minimally invasive endoscopic hematoma evacuation surgery.
Authors: Bruno Fernandes de Oliveira Santos; Daniel de Araujo Paz; Victor Miranda Fernandes; José Calasans Dos Santos; Feres Eduardo Aparecido Chaddad-Neto; Antonio Carlos Sobral Sousa; Joselina Luzia Menezes Oliveira Journal: Sci Rep Date: 2021-03-24 Impact factor: 4.379