Tuning-Target-Guided Inverse Planning of Brain Tumors With Abutting Organs at Risk During Gamma Knife Stereotactic Radiosurgery

Inverse treatment planning for Gamma Knife radiosurgery.

An inverse treatment planning system for Gamma Knife radiosurgery has been developed using nonlinear programming techniques. The system optimizes the shot sizes, locations, and weights for Gamma Knife treatments. In the patient's prescription, the user can specify both the maximum number of shots of radiation and a minimum isodose line that must surround the entire treatment volume. After satis...

Stereotactic gamma knife radiosurgery in the treatment of brain metastases

Outcomes of Gamma Knife Radiosurgery in Patients With Parasagittal Meningioma

Background & Aim: The treatment of Parasagittal Meningioma (PSM) is always a challenge, especially when the tumor has already invaded the critical structures like venous sinuses. This study aims at evaluating the outcomes of Gamma Knife Radiosurgery (GKRS) in patients with PSM. Methods and Materials/Patients: In this descriptive retrospective study, we reviewed the medical records of 61 patien...

Image-guided Radiosurgery Using the Gamma Knife

Image guided brain surgery became a reality in the mid-1970s after the introduction of the fi rst methods to obtain axial imaging using computed tomography (CT) [9]. The recognition of cranial disease much earlier in its clinical course prompted the need for concomitant minimally invasive technologies to both diagnose and to treat the newly recognized brain tumors and vascular malformations. Su...

Gamma knife radiosurgery for malignant tumors.

Between May 1990, and June 1994, 79 patients with malignant tumors were treated radiosurgically using a Leksell gamma unit at Asan Medical Center. Of these patients, 57 were metastatic brain tumor, 12 were glioblastoma multiforme (GM), 4 were primitive neuroectodermal tumor, 3 were malignant germ cell tumor, 2 were recurrent lymphoma, and 1 was adenoid cystic carcinoma of the orbit. Among 57 pa...