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Original Paper

Acoustic radiation force impulse imaging of kidneys – a phantom study

were manufactured – two with thick and two with thin renal cortex, each type at a depth similar to a normal-weight or overweight patient. For each phantom, a series of interest points was chosen and for each point 20 Shear Wave Velocity measurements were taken using the build-in Virtual Touch Tissue QuantificationTM tool in a Siemens Acuson S2000 ultrasound scanner equipped with a 6C1 HD Transducer (Siemens Mountainview, USA). Results: Mean Shear Wave Velocity values obtained for all the examined

Szymon Cygan, Magdalena Januszewicz

Journal of Ultrasonography , ISSUE 67, 329–338

research-article

MISSION TO MARS: RADIATION SAFETY OR RADIATION DISASTER? SPACE TRANSIT AND MARS RADIATION EXPOSURE RISKS – THE POTENTIAL SHIELDING EFFECT OF AN INTRAVEHICULAR GRAPHENE SPACE SUIT AND A STORM SHELTER DURING SPACE TRAVEL

low neutron production. These included gases such as hydrogen, low atomic number elements including carbon and polymers such as polyethylene. Materials were specified by their chemical composition, density and thickness. These materials were initially simulated as a 3mm thick sphere at their standard condition surrounding the computerised phantom to assess realistic suit material. A sphere configuration was chosen given the isotropic nature of GCR exposure. Materials were then converted to 10g/cm2

Tim Squire, Grant Buchanan, Hany Elsaleh

Journal of the Australasian Society of Aerospace Medicine , 1–9

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