Hi, I am a biomedical imaging and visualization researcher who investigates how the study of brain connectivity and machine perception can help advance the understanding of biologically inspired artificial intelligence.
Due 3 / 22 !
is a processing framework!
Dr. Rudolph Pienaar
uses highfrequency sound waves
Humans can hear
20Hz to 20kHz
View the uterus and ovaries during pregnancy and monitor the developing baby's health
Diagnose gallbladder disease
Evaluate blood flow
Guide a needle for biopsy or tumor treatment
Examine a breast lump
Check your thyroid gland
Detect genital and prostate problems
Assess joint inflammation (synovitis)
Evaluate metabolic bone disease
Quartz crystals vibrate to create sound
Tissue reflects the sound waves
Jelly to aid transmission
Bone absorbs Ultrasound!
We can't see tissue behind bones.
An NYPD officer stands ready with the LRAD 500X at an Occupy Wall Street protest on November 17, 2011
A LRAD on top of a New York City police Hummer.
Long Range Acoustic Device
Studies have found that exposure to high intensity ultrasound at frequencies from 700 kHz to 3.6 MHz can cause lung and intestinal damage in mice.
1 - 18 MhZ
Reflection Intensity over Time
Reflection Intensity w/ Blood Flow over Time
2d images from different angles
Although there are no confirmed biological effects on patients caused by exposures from present diagnostic ultrasound instruments, the possibility exists that such biological effects may be identified in the future. Thus ultrasound should be used in a prudent manner to provide medical benefit to the patient.
It's all numb3rs...
CS480 Lecture 19
By Daniel Haehn