An Enterprise-only feature for planning percutaneous ablations straight on the cross-sectional study. You mark the lesion (sphere, ellipsoid or freehand contour), place the needle (skin entry → tip) and simulate the predicted ablation zone for microwave, radiofrequency or cryoablation, reading a coverage verdict (does the zone cover the lesion plus a safety margin?). It works in MPR, Fusion and Compare (the three axial, sagittal and coronal planes).
Doomina ships no vendor templates and no pre-built zones: you type your device's open variables. (In the future, companies will be able to register their products as templates.) Because all geometry lives in patient coordinates (mm), the image pixels never leave your browser — only geometry metadata is saved to your account.
For now, each needle gets its zone characteristics entered ad hoc — there is no device selection or protocol registration yet (that comes later, as a paid feature where companies register their products).
For cryo, enter the isotherms (0 °C visible, −20 °C and −40 °C lethal), each with its own diameter, plus the freeze/thaw cycle protocol. The panel draws the concentric shells and measures coverage on the lethal zone (−40 °C), not the visible iceball edge. With multiple needles, it flags when the iceballs become confluent (synergy) and suggests the maximum spacing.
The coverage verdict shows the fraction of the lesion + margin covered by the union of zones (green ≥ 99.9% · amber ≥ 85% · red below). Because vendor charts are ex-vivo, use the in-vivo scale control to shrink the zone (real zones run ~20% smaller) before judging coverage.
The panel has three tabs: Lesion (mark the target), Plan (plan and see the expected coverage) and Ablation Zone. In the last one you mark the real ablation zone (the necrosis on follow-up) with the same tools as a lesion (sphere/ellipsoid/freehand + Sculpt/Margin/Cut). The real zone shows with a dashed outline (teal) to tell it apart from the lesion. The margin assessment then reports, per lesion, whether the real zone covered the lesion + margin, separating “lesion not covered” from “margin compromised” (lesion covered but short of the target margin) and showing the minimum achieved margin. In planning, a warning flags when the lesion exceeds the predicted zone and you need overlap or more than one applicator. In this version, the lesion and the zone are compared in the same spatial frame(same study/series or already-aligned studies); for pre/post different studies, align them in Comparison mode.
A device & protocol catalog — where companies will register their products (zone dimensions per power×time, cryo isotherms, etc.) — is a future paid feature. For now, everything is typed ad hoc per needle. Your lesions and plans stay private to your account (owner-isolated) and reappear when you reopen the same study on any device — always just mm geometry, never the pixels.