Elekta wins Australian VMAT contract

AuntMinnie.com staff writers

Mar 1, 2012

Oncology firm Elekta has installed its volumetric modulated arc therapy (VMAT) and Integrity digital control system at an Australian cancer clinic.

Nepean Cancer Care Centre of Sydney is using the firm's VMAT with Elekta's new Integrity R1.1 sixth-generation digital control system, and it has reduced total treatment time from 15 minutes to 10 minutes, according to Elekta.

VMAT delivers treatment in one or more high-speed arcs around the patient, allowing the radiation dose to conform to a tumor by adjusting the radiation beam's intensity. The digital control system allows the dose rate to be adjusted to its ideal value during delivery, making prescription delivery smoother and faster when compared to previous discrete dose rates, Elekta said.

Theranostics with Thomas Hope, MD, University of California, San Francisco (UCSF)

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Team members from the theranostics clinic under University of Texas Health Science Center at San Antonio's Department of Radiology show one aspect of a Pluvicto infusion treatment. The L block lead shield over the syringe helps protect certified nuclear medicine technologist James Johnson (left), and nuclear radiologist Penny Vroman, MD (right), from radiation emitted by the drug. (Photo courtesy of UT Health San Antonio Department of Radiology)

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Screenshot (1076)

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Representative example of tumor segmentation of radiomics regions of interest (ROI) on axial, coronal, and sagittal PET/CT imaging.

PET/CT radiomics predicts outcomes in women with cervical cancer

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March 26, 2024

Team members from the theranostics clinic under University of Texas Health Science Center at San Antonio's Department of Radiology show one aspect of a Pluvicto infusion treatment. The L block lead shield over the syringe helps protect certified nuclear medicine technologist James Johnson (left), and nuclear radiologist Penny Vroman, MD (right), from radiation emitted by the drug. (Photo courtesy of UT Health San Antonio Department of Radiology)

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Representative example of tumor segmentation of radiomics regions of interest (ROI) on axial, coronal, and sagittal PET/CT imaging.

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Prostate Cancer

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PET/CT and MR images of a 72-year-old woman. (A) F-18 FDG-PET images (left and top) and PET/CT images (bottom) shown in coronal, sagittal, and axial views (from left to right), demonstrated a metastatic lymph node of the right neck with intensive metabolic activity (black arrow, SUVmax, 30.1) but presented no evidence for primary tumor. (B) Ga-68 FAPI-PET images (top and right) and PET/CT images (bottom), shown in axial, sagittal, and coronal views (from left to right), also detected metastatic lymph node with high Ga-68 FAPI tracer activity (black arrow, SUVmax, 16.3). There was intensive uptake of Ga-68 FAPI in palate (red arrow, SUVmax, 11.3). (C) T1-weighted, T2-weighted, and contrast-enhanced T1-weighted MRI also presented no evidence for primary tumor. Subsequent surgery confirmed mucoepidermoid carcinoma of palate. Image courtesy of the Journal of Nuclear Medicine.

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A 50-year-old man with recently diagnosed nasal-type NK/T-cell lymphoma underwent an F-18 FDG-PET/CT scan (A–D) for initial staging. Maximum-intensity-projection image (A) shows hypermetabolic lesions in both ethmoid sinus (thin arrow), both cervical lymphatic chains (arrowhead), left upper lung (thick arrow), liver, and spleen. Transaxial images show an F-18 FDG-avid mass in both ethmoid sinus (B). The scan shows intense F-18 FDG radiotracer uptake in left upper lung and uptake in the liver and spleen (CT showed no lesions), suggesting malignancy (C–D). Finally, after the PET/CT scan was done, the patient’s staging was changed from II to IV.

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Axial PET (a) and axial fusion (b) images of F-18 FES (top) and F-18 FDG (bottom) with concordant uptake of both radiotracers in a left breast mass and left axillary node metastasis in correlation with CT imaging (c). Image courtesy of the European Journal of Hybrid Imaging.

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Radiation Therapy Suite 400

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