Properly normalized, the stress and rest projection data are shown in cine mode.This is the "raw data" and must be looked at first for every patient.
The Short Axis slice review screen. The images are normalized properly and presented for easy comparison between stress and rest to decide fixed versus reversible defect.
Click and point to magnify an image set.
The Vertical Long Axis slice review screen. The images are normalized properly and presented for easy comparison between stress and rest to decide fixed versus reversible defect.
The Horizontal Long Axis slice review screen. The images are normalized properly and presented for easy comparison between stress and rest to decide fixed versus reversible defect.
One of the output screens from INSPECT(TM).The normal files (left column); the patient data (second column from left), the standard deviation map (second from right), and the patient data with abnormal area indicated by the yellow region ( at 2.5 S.D. from the normal file) are shown. Row 1 is the Stress data; Row 2 shows the Reinjection data while Row 3 shows the reversibility data.
Another screen from INSPECTTM relates the defect region (black) and the appropriate coronary artery.
Another screen from INSPECTTM shows the apical CAP(right column) at stress (top), rest(middle) and reversibility(bottom). The display shows clearly a reversible apical defect. Return to the HLA and VLA display to confirm that there is a reversible defect at the apex.
The "SMAP" screen map the defect region (yellow) and the normal region (white) from stress to rest ---the same regions. Then the ischemic zone (IZ) count in the yellow region are divided by the normal zone counts (white region) and compared stress versus rest to decide fixed versus reversible defect. IZ/NZ(=50% at stress) << IZ/NZ(=90% at rest), showing quantitatively that the defect is reversible .
The SUMMARYfrom INSPECT(TM) shows all the short axis, horizontal long axis and vertical long axis slices from the SPECT study along with the Bull's-eyes and the quantitative output. Operator can point at any slice plane and see corresponding point on the Bull's-eye display.