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…
Acoustic Neuroma: Viewpoint—Surgery
Fig. 24.1 (a) A 5 cm acoustic neuroma prior to resection. The patient presented with tinnitus, hearing loss, and signs of brainstem compression. (b) Postoperative image after a retrosigmoid craniotomy….
