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That looks very impressive. However, I ask how effective this machine actually is on a medical level. Do these scans provide an advantage over traditional CT sc

That looks very impressive. However, I ask how effective this machine actually is on a medical level. Do these scans provide an advantage over traditional CT scans in that they collect more information? Are they more accurate? The reason I ask this is because I as a layperson am of course very impressed by the colored, realistic-looking, detailed textured scans -- but will this actually make a difference for a medical/clinical purpose? Will this enable doctors to make better decisions/assessments? I suspect it will, so I'm very pleased with this innovation. I also note that it might provide more fodder for medical image recognition programs. This tool, combined with good computer vision and analytics, could be very powerful indeed.

thibauts 12y ago
GE claims 0.23mm spacial resolution across a 160mm span in 0.28 seconds if I understand correctly [1]. This would be about 695^3 voxels. Seeing the example captures [2] I guess the device can scan multiple volumes in a row to cover larger spans. [1] http://www3.gehealthcare.com/en/Products/Categories/Computed_Tomography/Revolution_CT http://www3.gehealthcare.com/en/Products/Categories/Computed... [2] http://www3.gehealthcare.com/en/Products/Categories/Computed_Tomography/Revolution_CT/Image_Gallery http://www3.gehealthcare.com/en/Products/Categories/Computed...
jrapdx3 12y ago
Yes I agree very nice images. The article was light on detail, but looking at the results it appears, in common with other x-ray imaging, to be most effective with dense tissue, like bone where it reveals fine detail. Soft tissue isn't as well delineated. No doubt that the vascular images were made using contrast media. The value of the new device may well be most evident in the images of vessels in the brain, a region notoriously difficult to visualize adequately. Those images are things of beauty and I can see how the technology could translate to saved lives. (Think about enhanced ability to find a brain aneurism or small bleed.) MRI is complementary as more effective with soft tissue than x-ray, but less useful for dense matter like bone. Amazing how much the world of medicine has changed in the last 40 years. It's a domain where digital technologies have made a startling difference. Great to see these wonderful technologies put to such good use.
lemming 12y ago
The article is a little light on detail. However I see a cardiologist every couple of years due to a strong family history of isochaemic heart disease. He's been putting off more invasive scans since nothing in my medical presentation suggests I actually have a problem, but he said that this sort of scan where they'll be able to look for blockages on moving arteries will be a game changer for cardiac diagnosis - it's the very fast scanning on moving tissue that will be the big improvement. It's not clear whether this new machine actually provides that from the article, but he was expecting it to be developed and in use within the next couple of years.
- wyldfire 12y ago
  Revolution indeed provides superior temporal resolution over its predecessor. Though arguably Siemens dual-tube, dual-detector design provides yet better still temporal resolution.

thibauts 12y ago

GE claims 0.23mm spacial resolution across a 160mm span in 0.28 seconds if I understand correctly [1]. This would be about 695^3 voxels. Seeing the example captures [2] I guess the device can scan multiple volumes in a row to cover larger spans. [1] http://www3.gehealthcare.com/en/Products/Categories/Computed_Tomography/Revolution_CT http://www3.gehealthcare.com/en/Products/Categories/Computed... [2] http://www3.gehealthcare.com/en/Products/Categories/Computed_Tomography/Revolution_CT/Image_Gallery http://www3.gehealthcare.com/en/Products/Categories/Computed...

jrapdx3 12y ago

Yes I agree very nice images. The article was light on detail, but looking at the results it appears, in common with other x-ray imaging, to be most effective with dense tissue, like bone where it reveals fine detail. Soft tissue isn't as well delineated. No doubt that the vascular images were made using contrast media. The value of the new device may well be most evident in the images of vessels in the brain, a region notoriously difficult to visualize adequately. Those images are things of beauty and I can see how the technology could translate to saved lives. (Think about enhanced ability to find a brain aneurism or small bleed.) MRI is complementary as more effective with soft tissue than x-ray, but less useful for dense matter like bone. Amazing how much the world of medicine has changed in the last 40 years. It's a domain where digital technologies have made a startling difference. Great to see these wonderful technologies put to such good use.

lemming 12y ago

The article is a little light on detail. However I see a cardiologist every couple of years due to a strong family history of isochaemic heart disease. He's been putting off more invasive scans since nothing in my medical presentation suggests I actually have a problem, but he said that this sort of scan where they'll be able to look for blockages on moving arteries will be a game changer for cardiac diagnosis - it's the very fast scanning on moving tissue that will be the big improvement. It's not clear whether this new machine actually provides that from the article, but he was expecting it to be developed and in use within the next couple of years.

wyldfire 12y ago
Revolution indeed provides superior temporal resolution over its predecessor. Though arguably Siemens dual-tube, dual-detector design provides yet better still temporal resolution.