GE Healthcare Discovery CT590 RT - Manual (Page 5)

Precise contouring with ASiR ™
For targeting and contouring critical structures with confidence, rely
on GE’s industry-exclusive ASiR technique. As our advanced iterative
reconstruction technique, it enables reduction in image noise,
an image quality improvement.
ASiR provides greater contrast resolution, resulting in an improve-
ment in low-contrast resolution detectability (LCD) of up to 10%.
During treatment planning, these IQ improvements can improve
soft tissue visualization and the accuracy of target contours and
critical structures.
Alternatively, using ASiR, you can still obtain the same outstanding
image quality* at up to 40% lower CT dose.**
Precise treatment planning
MicroVoxel™
Exclusive microVoxel technology in the Discovery CT590 RT gives you
the optimum choice of reconstructed voxel size and sub-millimeter
slice thickness. This technology offers the ability to resolve smaller,
subtle structures, enabling more accurate contours and treatment
plans.
Advantage™ 4D
Advantage 4D respiratory gating solutions offer a new way to plan
radiotherapy precisely for tumors in motion. This breakthrough
application features integrated respiratory gating technologies,
including Varian RPM.™ Clinicians can now capture the full range of
motion of critical internal structures and lesions during respiration
to target moving tumors for gated or ungated treatment. And you
have full flexibility for either retrospective or prospective gating.
Our simple solutions are built to enable seamless workflow from
scan to plan, offering flexible options for all clinical cases.
GE Healthcare D Discovery CT590 RT 3
Without ASiR
MicroVoxel isotropic image quality.
Contouring while visualizing motion.
With ASiR
* Image quality measured as image standard deviation.
** The dose reduction level achieved will depend on the patient size, exam, and physician preference with specific protocol.