METHOD FOR INDIVIDUAL PLANNING OF ANTERIOR CLINOIDECTOMY IN MICROSURGERY OF COMPLEX CEREBRAL ANEURYSMS Russian patent published in 2024 - IPC A61B17/00 A61B6/03 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to neurosurgery, and can be used for individual planning of anterior clinoidectomy in microsurgery of complex cerebral aneurysms. Relationship between bone structures and aneurysmal complex is assessed; native CT and CT angiography data are assessed in MPR, 3D-reconstruction and MIP modes. In microsurgery of ICA aneurysms, aneurysm location relative to ACP and distance from its apex to proximal parts of aneurysm neck are estimated. In microsurgery of UAB aneurysms, the size of the aneurysm, the height of the neck and dome of the aneurysm are assessed by sagittal CT sections and the direction of the dome relative to the highest point of the PCP. To select a PC technique in surgery of ICA aneurysms, the size of the aneurysm, the presence of a ruptured aneurysm in the anamnesis and the direction of the dome are assessed. IAC is considered indicated in surgery of ICA aneurysms up to 15 mm in diameter, as well as ruptured ICA aneurysms of 15 mm and more in diameter with anterior or lateral direction of the dome. EAC is considered to be indicated in surgery of intact ICA aneurysms of 15 mm and more in diameter and ruptured ICA aneurysms of 15 mm and more in diameter with posterior or medial direction of dome. In surgery of UAB aneurysms, EAC is considered to be the indicated. EAC safety is assessed taking into account ACP pneumatisation, availability of additional points of ACP fixation to sphenoid bone, position of OS.

EFFECT: method provides higher efficiency and safety of treating patients, enables to optimize the algorithm for determining the indications and selecting the technique of ACP resection and reduce the risk of developing complications associated with underestimation of individual bone and vascular anatomy by using individual preoperative planning.

3 cl, 11 dwg, 7 ex