略語大辞典 [Med] 27 SPA single-photon absorptiometry 単一光子吸収計. 骨密度測定診断器. 放射性同位元素を用いた放射線吸収計.single-photon absorptiometry; a bone densitometer; radiation from a source ofiodine-125 is passed across the bone, and the signal is picked up on a scintillation counter on the other side; ref. DPA(dual-photon abso 丸善「略語大辞典」JLogosID : 11860080