Skull Base Tumors
First Author (year) Methods compared Patients (N) PTV (cm3) Results Bourlandet al. (‘94) [9] Noncoplanar circular arc vs. conformal fixed beam NA NA Smaller high-dose volume and better homogeneity for…
Metastatic Brain Tumors:Viewpoint—Surgery
Surgical resection Stereotactic radiosurgery Patient selection Tissue diagnosis Confirms the lesion is a tumor Cannot confirm the lesion is a tumor Lesion size Large, ≥1.5 cma; especially if there…
CyberKnife
Fig. 11.1 The main components of the CyberKnife system. (Modified image used with permission from Accuray Incorporated) Fig. 11.2 A library of digitally reconstructed radiographs (DRRs) is generated from the…
Radiosurgery of Acoustic Schwannomas
G-R hearing class Criteria Class I (good) PTA 0–30dB and/or SDS 70–100 % Class II (serviceable/useful) PTA 31–50dB and/or SDS 50–69 % Class III (non-serviceable) PTA 51–90dB and/or SDS 5–49…
LINAC: Past, Present, and Future of Radiosurgery
Date Primary author Location Event 1928 R. Wideroe Baden, Switzerland Developed photon beam radiation with high-frequency generator 1938 W. Hansen Stanford, USA Description of “rhumbatron” using a resonant microwave unit…
Spinal Metastases: Viewpoint—Fractionated Radiation Therapy
Fig. 46.1 Comparison of treatment plans for 1-, 3-, and 5-fraction SBRT The long-term patient-reported outcomes data collected prospectively for hypofractionated SBRT at MDACC was reported by Wang et al….
Gamma Knife Radiosurgery
Continent Country Units Africa Egypt 2 Morocco 1 Australia Australia 1 Asia China 16 India 7 Indonesia 1 Iran 1 Korea 15 Japan 48 Jordan 1 Pakistan 1 Philippines 1…
Spinal Tumors: Viewpoint—Surgery
Study Criteria Recommendations Harrington et al. (1986) [37] Five categories: Based on category: 1. No neurologic dysfunction (1) and (2): nonoperative management 2. Involvement of bone without collapse or instability (3): left…
Epilepsy: Viewpoint—Surgery
Fig. 59.1 Intracranial monitoring with grids and strips Based on the results of the neuroimaging studies, patients are divided into those with and without space-occupying lesions. A space-occupying lesion is…
Meningioma—Viewpoint: Fractionated Radiotherapy
Benign meningioma (WHO grade I) Any predominant histology other than clear cell, chordoid, papillary, or rhabdoid Lacks criteria of atypical, brain invasive, and anaplastic meningioma Atypical meningioma (WHO grade II)…
