Radiology News & Articles

1 A proposed method to comprehensively define outcomes in acoustic tumor patients undergoing cyberknife management Stereotactic and Functional Neurosurgery , March 18, 2013
Lin MC et al. - This study conducted physiological and morphological assessments for VS patients before and after cyberknife radiosurgery. The use of oVEMP and cVEMP tests in VS patients before stereotactic radiosurgery may help to evaluate the tumor origin from the superior or inferior vestibular nerve. It takes a short time and costs less, and it would be practical to make this a routine examination in VS patients having stereotactic radiosurgery.

2 CyberKnife radiosurgery for the management of skull base and spinal chondrosarcomas Journal of Neuro-Oncology, June 14, 2013
Jiang B et al. - The use of cyberknife (CK) stereotactic radiosurgery (SRS) for the management of central nervous system chondrosarcomas has not been previously reported. There appears to be a clinically, albeit not statistically, significant trend towards poorer outcomes in similarly treated metastatic, recurrent, and spinal chondrosarcomas (p = 0.07). Lesions not candidates for single fraction SRS may be treated with hypofractionated SRS without increased risk for radiation necrosis.

3 Accuray Falls on Recall of CyberKnife Radiosurgery System Bloomberg News, April 18, 2013
Accuray Inc. (ARAY) shares fell the most in seven weeks as U.S. regulators said the company’s cyberknife robotic radiosurgery system is being recalled for a defect. An urgent correction letter was sent March 19 to doctors about the system, affecting 176 units on the market, the Food and Drug Administration said in a notice posted on its website. The company said the voluntary recall involved two separate components from the Iris Variable Aperature Collimator and the Robocouch patient ...

4 Skull base osteosarcoma presenting with cerebrospinal fluid leakage after CyberKnife(R) treatment: a case report Journal of Medical Case Reports, April 29, 2013
Yamada SM et al. - A skull base tumor was identified on magnetic resonance imaging in a 78-year-old Asian woman with a headache in her forehead. An endoscopic transnasal tumor resection was performed; however, the tumor, invading into the cavernous sinuses and optic canal, was not completely removed. cyberknife(R) radiation is one of the effective treatments for skull base tumors; however, the risk of cerebrospinal fluid leakage should be considered when tumor invasion to the ...

5 Hypofractionated Stereotactic Radiotherapy with the Hypoxic Sensitizer AK-2123 (Sanazole) for Reirradiation of Brain Metastases: A Preliminary Feasibility Report Anticancer Research, April 11, 2013
Yamazaki H et al. - Reirradiation is a challenging field in the treatment of recurrent brain metastases. Because of the elevated risk of radiation toxicity due to previous irradiation, only a limited dose is prescribed. The other patients maintained good performance status until disease progression in other lesions. hSRT with a hypoxic radiation sensitizer appears to have the potential to enhance the efficacy of radiotherapy.

6 Frequency, outcome and prognostic factors of carotid blowout syndrome after hypofractionated re-irradiation of head and neck cancer using CyberKnife: A multi-institutional study Radiotherapy & Oncology, June 11, 2013
Yamazak H et al. - Re-irradiation has attracted attention as a potential therapy for recurrent head and neck tumors. However, carotid blowout syndrome (CBS) has become a serious complication of re-irradiation because of the associated life-threatening toxicity. Determining of the characteristics of CBS is important. The authors conducted a multi-institutional study. Careful attention should be paid to the occurrence of CBS if the tumor is located adjacent to the ...

7 PET/CT appearance of acute pyelonephritis Clinical Nuclear Medicine , June 13, 2013
McCammack KC et al. - An 18-year-old male patient with a history of Ewing sarcoma originally involving the right ilium was evaluated with an FDG PET/CT scan to evaluate the effect of salvage therapy after standard treatment failed and disease progressed to involve the right T12 pedicle. Autologous stem cell transplantation and cyberknife therapy resulted in mixed tumor response, with incidental note made of prominent areas of cortical FDG avidity in the right kidney. These ...