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AAPM: bringing you the 'Best in physics'

A selection of some of the top-ranked presentations from the 2014 AAPM Annual Meeting.

Registration scheme tackles 'missing structures'

Adding a penalty term to a non-rigid registration algorithm allows registration of structurally dissimilar medical images.

AAPM Annual Meeting: product update

A selection of some of the new products and software unveiled at this year's AAPM Annual Meeting.

PET tracer promising for brain tumours

Early clinical trial of a new PET tracer shows promise for detecting brain tumours.

Site-specific margins enhance proton plans

Analysing range uncertainties caused by inaccuracies in dose calculation reveals a need for site-specific margins in proton therapy.

Proton therapy shows clinical promise

The theoretical advantages of proton beam therapy are supported by results from two new clinical studies.

Phantoms offer realistic non-rigid motion

Digital phantoms that exhibit non-rigid respiratory and body motion allow more realistic testing of PET and SPECT motion correction schemes.

'Quadrapeutics' magnifies chemoradiation

A four-component technique enhances chemotherapy and radiotherapy effectiveness by up to 100-fold.

MRI: safety and training remain a concern

MRI safety remains a concern, as does the need for more formal training.

IMPT offers effective, less toxic treatment

Multifield optimization intensity-modulated proton therapy is safe, effective and less toxic than IMRT for head-and-neck tumours.

Dark-field imaging diagnoses lung disease

X-ray dark-field radiography is used for the first time to diagnose lung disease in mice

In brief: research round-up

Recent developments in surgical guidance, breast imaging, magnetic therapy and more.

CLEO highlights innovations in OCT

Presenters at CLEO 2014 describe advances in optical coherence tomography for precision-guided epidurals and blood monitoring.

GE unveils prototype MRI brain scanner

GE Healthcare is developing a compact 3T MRI scanner designed specifically for head and brain imaging.

MRI-linac can acquire high-quality images

Shimming allows an MRI-linac system to acquire images with good geometric fidelity for all static gantry positions.

Innovation: patent applications review

Our survey of the latest international patent applications in radiation therapy reviews filings from Philips, Elekta, Qfix and more.

Multilayered nanoparticles ablate tumours

Nanospheres surrounded by a silica-gold shell can photothermally ablate aggressive breast tumours in mice.

Optical monitoring assesses HIFU damage

Measuring changes in tissue optical properties could provide a low-cost method for monitoring high-intensity focused ultrasound.

How to optimize astatine-211 production

Astatine-211 is a promising radionuclide for targeted alpha-particle therapy, if supply challenges can be met.

Measuring interplay in carbon ion therapy

4D dose computation method quantifies the dosimetric impact of irregular tumour motion on scanned-beam carbon ion therapy.