James C. Tilton, a scientist at NASA’s Goddard Space Flight Center, for some years now has been working on new image enhancement software to help automatically analyze satellite data of the Earth. Hierarchical Segmentation Software (HSEG), as the tool is called, identifies relatively homogeneous areas of an image and highlights them.
Our eyes and brains are pretty good at image analysis, but large dense maps can be quite a challenge. Although originally designed for aerial cartography, the first commercial use of the software came in the form of a mammogram enhancement and analysis system.
The lakes of northern Wisconsin (top) are very much like dense breast tissue (side) to a NASA scientist it turns out, and porting over the code and optimizing it led to the MED-SEG™ system from Bartron Medical Imaging (New Haven, Connecticut). Having received FDA approval, plans are now being made to conduct clinical trials evaluating how MED-SEG can benefit radiologists in cancer diagnosis. Read more »
*This blog post was originally published at Medgadget*
The Speech Production and Articulation Knowledge Group at the University of Southern California (USC) works on very interesting projects. If you’ve ever wondered what an MRI of vocal performance might look like, this is it. From USC:
This video illustrates real-time MRI of vocal performance. It includes examples from a soprano and an emcee/beatboxer. This video was featured at the Sounds and Visions Session of the International Society for Magnetic Resonance in Medicine (ISMRM) Scientific Sessions, May 2006, Seattle.
Medical Pastiche blogger Peter Zavislak, whom I can always count on to point out the unusual and interesting sides of medicine, sent me to a website that has nothing but pictures and videos of food in an MRI scanner.
Here’s a series of images from their site of a cantaloupe as viewed from an MRI:
I just find myself thinking that these MRI machines aren’t cheap to run and maintain. Doctors and nurses used to be able to get “freebies” by buddying up with the X-ray, CT or MRI technologist and running a scan for free.
Some hospitals allow their employees to test the machines after being set up or maintained to get images for testing purposes. I’m sure more than a technologist or radiologist or two have found incidentalomas from this practice. Read more »
The Associated Press recent article “Overtreated: More medical care isn’t always better” reiterated a commonly known fact which is not understood by the public. This problem of doing more and yet getting little in return is a common issue which plagues the U.S. healthcare system and was illustrated quite convincingly by Shannon Brownlee’s book. Americans get more procedures, interventions, imaging, and tests but aren’t any healthier.
In fact they are often worse off. Too many unnecessary back surgeries. Too many antibiotics for viral infections, which aren’t at all impacted by these anti-bacterial therapies. Too many heart stents which typically are best used when someone is actually having a heart attack. Research shows that those that are treated with medications do just as well. As all patients with cardiac stents know, they also need to be on the same medications as well.
Eliminating unnecessary treatments is a good thing, particularly when it is based on science. Read more »
This video has been available for months, but I just saw it for the first time. I suspect many women would get a chuckle from seeing the always buffed, ripped, and jacked comedian Jack Black partially disrobe to put his breast in a mammography machine — or as he calls it, the “Boob Saver 5K.”
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James C. Tilton, a scientist at NASA’s Goddard Space Flight Center, for some years now has been working on new image enhancement software to help automatically analyze satellite data of the Earth. Hierarchical Segmentation Software (HSEG), as the tool is called, identifies relatively homogeneous areas of an image and highlights them.
