- AI
- Molecular Imaging
- CT
- X-Ray
- Ultrasound
- MRI
- Facility Management
- Mammography
Spider fossils! See them in 3D CT!
Unlike Tarantula and other horror films of the 1950s, fossil spiders in 3D CT may not be more terrifying than any creature known to man.
Unlike Tarantula and other horror films of the 1950s, fossil spiders in 3D CT may not be more terrifying than any creature known to man. But the three-dimensional presentations are helping paleontologists discover how the creatures looked and behaved.
Growing to about the diameter of a half dollar, Cryptomartus hindi and Eophrynus prestivicii roamed the Earth during the Carboniferous period, about 325 million years ago, as life was first emerging from the oceans to live on land. Both terrestrial creatures walked on four pairs of legs and looked much like modern spiders.
Scientists at Imperial College in London used microtomography to acquire 3000 CT slices of the fossils and produce volumetric versions of the little critters.
The 3D models indicate that two legs of C. hindi (left) were angled toward the front of its body, suggesting they were used to grab prey. Scientists have theorized that it was an ambush predator, living in logs and on fern fronds, where it waited for insects to walk by.
Spikes on the back of E. prestivicii (right) may have been a defensive adaptation making them less appetizing to amphibians, which had also recently made their first appearances on land. To learn more, go to www.palenews.net/.
Study Reaffirms Low Risk for csPCa with Biopsy Omission After Negative Prostate MRI
December 19th 2024In a new study involving nearly 600 biopsy-naïve men, researchers found that only 4 percent of those with negative prostate MRI had clinically significant prostate cancer after three years of active monitoring.
Study Examines Impact of Deep Learning on Fast MRI Protocols for Knee Pain
December 17th 2024Ten-minute and five-minute knee MRI exams with compressed sequences facilitated by deep learning offered nearly equivalent sensitivity and specificity as an 18-minute conventional MRI knee exam, according to research presented recently at the RSNA conference.
Can Radiomics Bolster Low-Dose CT Prognostic Assessment for High-Risk Lung Adenocarcinoma?
December 16th 2024A CT-based radiomic model offered over 10 percent higher specificity and positive predictive value for high-risk lung adenocarcinoma in comparison to a radiographic model, according to external validation testing in a recent study.
