The voice of medical imaging and clinical oncology

Dual-energy x-ray absorptiometry: radiation protection for staff and patients

bone densitometry DEXA DXA Graham Hart radiation protection safety skeletal

Dual-energy x-ray absorptiometry (DXA or DEXA) has been the standard method for measuring or monitoring bone mineral density for many years, used principally for the assessment of osteoporosis and hence the risk of bone fracture. It is also now increasingly being used for the assessment of body composition.

The concept behind DXA is to make transmission measurements through a patient using x-ray beams of two different energies or spectra. Typical energies are in the range 70-75kVp and 130-140kVp. Either two beams of separate energies are used, or now more commonly two separate energy measurements are made from a single x-ray beam.

The content on this page is provided by the individuals concerned and does not represent the views or opinions of RAD Magazine.

Read more scientific articles

The role of ultrasound in lung disease

Thoracic ultrasound (TUS) has emerged as an invaluable tool in the diagnosis and management of lung disease. Historically underutilised, advancements in ultrasound technology have revolutionised its application in pulmonary medicine. The lung, predominantly an air-filled organ, does not traditionally lend itself to direct ultrasound imaging; however, the presence of interstitial fluid, pleural effusion, consolidation or […]

Dr Syed Muhammed Zubair, Dr Raja Reddy

Kettering General Hospital NHS Foundation Trust

Read Article

An unexpectedly therapeutic ultrasound: real-time capture of ovarian cyst rupture

Simple ovarian cysts and cyst accidents are common gynaecological presentations in pre-menopausal women. In this case report, a cyst rupture occurred during ultrasound scan, neatly uniting the pre- and post-accident appearances in one event. The patient attended with pain and a 6cm cyst seen on CT, for ultrasound evaluation and follow-up by gynaecology as a […]

Leah Marsden

Wye Valley NHS Trust

Read Article

Breast screening and health inequalities: one screening service’s experience of addressing health inequalities

Breast screening services have always had a responsibility to encourage breast screening attendance. It has become evident that health inequalities influence both screening uptake and cancer treatment pathways. Activity within services to increase breast screening attendance therefore needs to understand and address health inequalities. To access the full article as a pdf please sign up […]

Claire Bailey

Claire Bailey

St George's University Hospitals NHS Foundation Trust

Read Article

Stay up to date with
RAD Magazine

Sign up for our newsletter.

We care about your data. Read our privacy policy.