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Radiation Oncology Medical Physics Resources

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Radiotherapy in Australia: Pre-1900

July 22, 2016 · by Scott Crowe · in Radiation Therapy

The discovery of X-rays by Wilhelm Röntgen in 1895 prompted excitement around the world, including in Australia. The therapeutic application of “Röntgen rays” was explored almost immediately – here are the milestones of those early years in Australia. References Bailey…

Miss Dorothy Wellington

Miss Dorothy Wellington

July 21, 2016 · by Scott Crowe · in Radiation Therapy

In 1977, Dr. Rutherford Kaye Scott presented the first Sir Peter MacCallum Lecture at the opening of the new wing of the Peter MacCallum Hospital in Melbourne, which was published with the title “The Radiant Years” in Australasian Radiology (vol….

Rotating phantom in TSET delivery

June 6, 2016 · by Scott Crowe · in Radiation Therapy

Embedded footage from experiment in Masters research project of Anthony Orth, which examined dose uniformity of various total skin electron therapy treatment techniques. Here, a RANDO phantom has been placed on a custom-made rotating platform, controlled by an Arduino system….

Historical Gammasonics advertisements

Historical Gammasonics advertisements

May 8, 2016 · by Scott Crowe · in Diagnostic Imaging, Radiation Therapy

The following advertisements were taken from personal scans of Australasian Physical and Engineering Sciences in Medicine issues published in 1989 and 1990. Gammasonics provided (and continues to provide) equipment for medical physics departments.  

RBWH Journal Club 2015

January 1, 2016 · by Scott Crowe · in Radiation Therapy

In September 2015 I began organising a monthly journal club meeting within the Radiation Oncology Medical Physics group at the Royal Brisbane & Women’s Hospital. Meetings involved a round-table discussion of the papers distributed a couple of weeks in advance. The…

Radiotherapy of Benign Disease

November 2, 2015 · by Scott Crowe · in Radiation Therapy

Radiation therapy was once widely used in the treatment of benign diseases. Leer et al (1996) reported that in 1948, at the Rotterdam Radiotherapeutic Institute, 3348 benign disorders were irradiated compared with 857 malignant tumours. Early therapeutic applications of radiation in Australia included the treatment…

Extracting colour channel data in Python

October 27, 2015 · by Scott Crowe · in Coding Examples

Flatbed film scanners are used within radiation oncology medical physics departments for the scanning of radiosensitive film. Depending on the film in use, a physicist will want to extract colour channel data from the scan, which is frequently saved as a…

Python Exercise #1C – Film Calibrator

October 21, 2015 · by Scott Crowe · in Coding Examples

Radiosensitive film is frequently used by radiation oncology medical physicists for quality assurance measurements. The physicist is sometimes interested in obtaining a calibrated dose value (as opposed to relative values). One calibration method, using calculated optical density (OD) values, involves…

Python Exercise #1B – Field Size Calculator

October 21, 2015 · by Scott Crowe · in Coding Examples

The field size of a radiation beam is generally defined using the 50% isodose line. When examining cross-plane or in-plane dose profiles, this can be referred to as the full width at half maximum (FWHM).  The second python exercise, detailed here, was…

Python Exercise #1A – MLC shaper

October 21, 2015 · by Scott Crowe · in Coding Examples

The MLC Shaper application, developed by Varian, allows the creation of .MLC files that can be used to deliver multi-leaf collimated fields in service. The first python exercise, detailed here, was to develop similar software to allow the creation of…

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