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Running on Zero
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ab1db83 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | """CT Hounsfield-unit window/level presets and conversion helpers."""
from __future__ import annotations
from dataclasses import dataclass
@dataclass(frozen=True)
class WLPreset:
name: str
width: float
level: float
def to_min_max(self) -> tuple[float, float]:
return self.level - self.width / 2.0, self.level + self.width / 2.0
CT_PRESETS: dict[str, WLPreset] = {
"soft_tissue": WLPreset("Soft Tissue", 350, 50),
"lung": WLPreset("Lung", 1500, -600),
"bone": WLPreset("Bone", 1800, 400),
"brain": WLPreset("Brain", 80, 40),
}
CT_PRESET_LABELS = [p.name for p in CT_PRESETS.values()]
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