Kinect Used to Better Estimate Body Size and CT Radiation Dose

Yet another innovative use for Microsoft’s Kinect sensor: researchers at the Hospital of the University of Pennsylvania are using Kinect to estimate whole-body volume in order to provide more accurate CT dose estimations. Several methods exist that estimate whole-body effective radiation dose, however many of those do not incorporate patient size, which can result in inaccurate estimations in small patients such as children and in large adults. Also, current methods usually do not incorporate the size of the region of anatomy being imaged.

Mapping the Dynamic Changes of Nuclear Radiation over Germany

Since the Great East Japan Earthquake and the following Fukushima  disaster, there have been quite some maps of nuclear radiation sensor  data out there (for those interested, in my sketchpad, I noted down: the  just posted and beautiful 311 Scale map, the NYTimes version, a radiation data-specific 3D globe and some others).

Mapping the Dynamic Changes of Nuclear Radiation over Germany

Since the Great East Japan Earthquake and the following Fukushima disaster, there have been quite some maps of nuclear radiation sensor data out there (for those interested, in my sketchpad, I noted down: the just posted and beautiful 311 Scale map, the NYTimes version, a radiation data-specific 3D globe and some others).

Posted 3 years ago
9 notes
Visualizing Doses of Nuclear Radiation and their Impact on Humans
In today’s world, we cannot avoid reading about millisievert numbers and alternative denominations of “dose equivalent radiation” in the news, together with comparative statements as “7.5 million times the legal limit"  (Does it matter? What about 8.5 million? 7.5 trillion anyone?) and  other relatively complex comparisons and limits that combine  exposures by hours, with those of days or years equivalent.

Visualizing Doses of Nuclear Radiation and their Impact on Humans

In today’s world, we cannot avoid reading about millisievert numbers and alternative denominations of “dose equivalent radiation” in the news, together with comparative statements as “7.5 million times the legal limit" (Does it matter? What about 8.5 million? 7.5 trillion anyone?) and other relatively complex comparisons and limits that combine exposures by hours, with those of days or years equivalent.
Posted 3 years ago
14 notes
XKCDs Radiation Dose Chart

This is a chart of the ionizing radiation dose a person can absorb from various sources.  The unit for absorbed dose is “sievert” (Sv), and measures the effect a dose of radiation will have on the cells of the body.  One sievert (all at once) will make you sick, and too many more will kill you, but we safely absorb small amounts of natural radiation daily. Note: The same number of sieverts absorbed in a shorter time will generally cause more damage, but your cumulative long-term dose plays a big role in things like cancer risk.

XKCDs Radiation Dose Chart

This is a chart of the ionizing radiation dose a person can absorb from various sources.  The unit for absorbed dose is “sievert” (Sv), and measures the effect a dose of radiation will have on the cells of the body.  One sievert (all at once) will make you sick, and too many more will kill you, but we safely absorb small amounts of natural radiation daily. Note: The same number of sieverts absorbed in a shorter time will generally cause more damage, but your cumulative long-term dose plays a big role in things like cancer risk.

Posted 3 years ago
664 notes