Focused Ultrasound describes the focusing of high frequency sound waves (in the 0.2 - 10 MHz range) for the purpose of heating and ablating tissue. Also known as High Intensity Focused Ultrasound or HIFU (due to the immense intensity at the focus), focused ultrasound treatments can be guided by ultrasound or MRI. Ultrasound image guidance is capable of providing feedback on changes in tissue density and elasticity.
MRI is capable of providing temperature feedback to an accuracy of 3 degrees Celcius. As a result, focused ultrasound provides a highly precise form of heat ablation. Read more.
CT stands for Computerised Tomography (also referred to as a CAT scan). CT’s use x-rays to take pictures from different angles around the body. A computer then takes these images and produces image slices or cross-sections through the relevant areas of the body.
Each scan equals a single slice, similar to slices in a loaf of bread.
CT scanners acquire images rapidly and in sequence with multiple slices being stacked together to form a 3 dimensional image
Mammography is the most effective method currently available for breast cancer detection. Mammography machines use low doses of x-rays to produce an image of the breast and breast tissue. The image is examined by the Radiologist who looks for changes or inconsistencies in the breast tissue.
Mammography is critical in breast cancer detection because the images can reveal cancers that are too small to be felt.