1-hour acquisition
No file loaded
x: — y: —
Windowing
ROI tools
HEART not set
CL LUNG not set
Measurements
Local processing only. DICOM data remain in this browser session and are never transmitted.
Instructions
Load the 1-hour and/or 3-hour uncompressed DICOM images. On the 1-hour image, draw the HEART ROI by click-and-drag, then place the equal-sized CL LUNG ROI with a single click. On the 3-hour image, place each ROI with a single click; its radius is locked to the matching 1-hour ROI. Existing ROIs can be moved by hover-and-drag.
The application reports measurements only. It does not apply thresholds, classifications, diagnostic labels, interpretations, or conclusions.
3-hour acquisition
No file loaded
x: — y: —
Windowing
ROI tools
HEART not set
CL LUNG not set
Measurements
Perugini visual grade — operator input
Perugini grade: not assigned
Derived values
H/CL ratio 1 h
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H/CL ratio 3 h
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Retention Index
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