Approximate CT-free patient specific attenuation correction method for cardiac-dedicated pinhole CZT system: a feasibility phantom study
Michel Hesse, Florian Dupont, Véronique Roelants · 2026
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Description
Michel Hesse, Florian Dupont, and Véronique Roelants test a way to correct heart scans for tissue absorption without a CT scan in this 2026 phantom study. Dedicated heart cameras lack built-in CT, so absorption can warp images depending on body shape. Their method builds a patient-specific map from the emission data itself.
Two torso phantoms were scanned on the heart camera at two detector distances. Combining the scans outlined the body and separated soft tissue from lung, yielding the correction map. Corrected images closely matched those from CT-based correction on standard heart maps. Wall defects stayed visible, except for half-blocking ones. The authors say the approach could sharpen diagnosis on existing cameras without extra radiation.
Catalog record
| CREATOR | Michel Hesse, Florian Dupont, Véronique Roelants |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 34 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |