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  • Title: Measurement of pulmonary perfusion using a digitised ECG-triggered gamma ray absorption technique.
    Author: Kiuru A, Tikkinen J, Koskinen H, Holmberg P.
    Journal: Phys Med Biol; 1981 Mar; 26(2):237-44. PubMed ID: 7220601.
    Abstract:
    AN ECG-triggered multisweep method for the collection of low-energy gamma ray absorption data in normal and cancerous tissue has been developed, resulting in digital perfusion curves with reliable statistics. The small intensity modulation ( approximately equal to 1.2%) due to lung perfusion is detected and separated from the much stronger intensity variations caused by ventilation in a satisfactory way. During this non-invasive test the patient is supine and breathes smoothly.
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