The technology for creating new tissues from stem cells has taken a giant leap forward. Two tablespoons of blood are all that is needed to grow a brand new blood vessel in just seven days…
In a significant technical advance, a team of neuroscientists at The Rockefeller University has devised a fast, inexpensive imaging method for probing the molecular intricacies of large biological samples in three dimensions…
Cancer is the second leading cause of death in the United States killing 585,000 Americans every year. Susann Brady-Kalnay, a cancer biologist at Case Western Reserve University in Cleveland, Ohio wants to change that…
… scanner size of iPhone hold up 2 person’s chest & see vivid, moving, 3-D image of what’s inside … relies on new kind of ultrasound chip, could eventually lead 2 new ways 2 destroy cancer cells w/heat, or deliver info 2 brain cells … coming out of 4Combinator, incubator created 2 start & finance companies combine medical sensors w/branch of artificial-intelligence science called deep learning …
… X-ray phase tomograph imaging technique uses penetrating X-rays 2 create volumetric views through “slices” or sections of soft biological tissues … compare 3 different X-ray phase tomography methods —X-ray grating interferometry, propagation-based phase tomography w/single-distance phase reconstruction, & holotomography. put 3 techniques 2 test by examining entire rat’s heart … explored method performs best in terms of spatial resolution & visualization / quantification of relevant features in samples … show 4 each specimen, spatial resolution derived from characteristic morphological features ~ twice as good 4 holotomography & single-distance phase reconstruction compared 2 X-ray grating interferometry. also found X-ray grating interferometry data generally provide much better contrast-2-noise ratios 4 anatomical features, excel in fidelity of density measurements, & more robust against low-frequency artifacts than holotomography. turns out all 3 of phase tomography methods being complementary. application determines spatial & density resolutions desired 4 imaging task & dose requirements, really choice between complexity of experimental setup & data processing … help provide guidance 4 other researchers in developing ideal phase-contrast imaging method, adopted by hospitals in future …
