Radiation therapy treatments are typically planned based on a single image set, assuming
that the patient's anatomy and its position relative to the delivery system remains constant …

Exploitation of the full potential offered by ion beams in clinical practice is still hampered by
several sources of treatment uncertainties, particularly related to the limitations of our ability …

The use of hadron beams, especially proton beams, in cancer radiotherapy has expanded
rapidly in the past two decades. To fully realize the advantages of hadron therapy over …

Proton radiography and tomography have long promised benefit for proton therapy. Their
first suggestion was in the early 1960s and the first published proton radiographs and CT …

It is recognized that the use of a single plan calculated on an image acquired some time
before the treatment is generally insufficient to accurately represent the daily dose to the …

Owing to the favorable physical and biological properties of swift ions in matter, their
application to radiation therapy for highly selective cancer treatment is rapidly spreading …

Purpose Proton CT is widely recognised as a beneficial alternative to conventional X-ray CT
for treatment planning in proton beam radiotherapy. A novel proton CT imaging system …

A simple robust optimizer has been developed that can produce patient-specific calibration
curves to convert x-ray computed tomography (CT) numbers to relative stopping powers (HU …

Abstract In 2016 and 2017, the 8th and 9th 4D treatment planning workshop took place in
Groningen (the Netherlands) and Vienna (Austria), respectively. This annual workshop …

We present a comprehensive analytical comparison of four types of proton imaging set-ups
and, to this end, develop a mathematical framework to calculate the width of the uncertainty …