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Calculation uncertainties undermine dose verification

Large uncertainties in calculating the production rate of positron emitters in proton beams undermine PET-based particle therapy verification, explains Frank Verhaegen.

EIT: where is it now and what lies ahead?

A new review paper examines the current status of electrical impedance tomography, how the technique should be progressed and how best to achieve these developments.

CERN: catalysing collaboration for medical advances

The ICTR-PHE conference in Geneva saw clinicians and physicists come together to help transfer the benefits of basic scientific research to medicine.

Future prospects for proton therapy

Technology developments required to optimize tomorrow's proton therapy installations include "five highs and one low", said PSI's Marco Schippers.

Turkey bolsters isotope supplies

A new facility is about to open outside Ankara that is designed to end Turkey's dependence on importing expensive isotopes for medical use. Michael Banks takes an exclusive tour of the project.

MRI safety: accidents are not inevitable

With MRI accidents on the increase, what's really needed is a uniform set of MRI safety standards that apply to all providers and which are enforced. Tobias Gilk explains.

SPECT offers big benefits for imaging small animals

Video report: Freek Beekman describes how high-resolution SPECT systems play an invaluable role in small-animal imaging.

Image guidance: the way forward for radiotherapy

Video report: Uwe Oelfke explains how image guidance can address the challenges of motion during radiotherapy.

The low-down on molecular imaging

Video report: Simon Cherry discusses recent progress in molecular imaging and examines how these techniques are increasingly being translated to the clinic.

Laser-based acceleration: designs on proton therapy

The LIGHT collaboration is investigating laser-based particle acceleration for applications such as proton therapy. Project leader Markus Roth from TU Darmstadt discusses recent progress.

DGRT: it's the dose that matters

Dose-guided radiation therapy shifts the emphasis from patient positioning to dosimetric considerations, explains UCSF's Jean Pouliot.

Ultrasound tackles radiotherapy guidance

Ultrasound imaging could provide real-time, soft-tissue visualization during radiotherapy delivery.

Five years on: advances in proton therapy

How have proton therapy systems and techniques progressed over the five years since the launch of medicalphysicsweb?

Five years on: advances in radiation therapy

In the five years since the launch of medicalphysicsweb, which technology advances have made a significant impact in the application of radiation therapy?

SRS and SBRT: safety first

Stereotactic radiosurgery and stereotactic body radiation therapy come with tight margins of error and require robust quality assurance. Timothy Solberg explains how institutes can best meet these requirements.

Small-animal irradiation: precision platforms emerge

Research platforms for small-animal irradiation should play a central role in the development of new radiotherapy modalities. Frank Verhaegen of the Maastro Clinic examines the emergence of such systems.

MRI-linac: a progress update

Researchers at the University Medical Center Utrecht are developing an integrated MRI-linac for real-time image guidance during radiotherapy. Project leaders Jan Lagendijk and Bas Raaymakers discuss the system's progress.

Magnetic particle imaging: x-space options

The second article in our two-part series on magnetic particle imaging takes a look at the evolution of x-space MPI.

Magnetic particle imaging: moving ahead

In the first of a two-part series on magnetic particle imaging, we examine the latest developments in MPI hardware and nanoparticle design.

Small field dosimetry: challenges and progress

As radiation treatments increasingly employ small fields, there's a growing need to address the challenges associated with small field dosimetry. Mania Aspradakis and John Byrne explain.