| Автор | J E Agnew |
| Автор | R A Francis |
| Автор | D Pavia |
| Автор | S W Clarke |
| Дата выпуска | 1982-02-01 |
| dc.description | Quantitative indices are described for assessing the distribution of ventilation imaging agents (radioaerosols, in particular) within the lung. They have been applied to images obtained with <sup>99</sup>Tc<sup>m</sup> aerosol particles (0.5-2.0 µm diameter) and with <sup>81</sup>Kr<sup>m</sup> gas in 12 patients with a wide range of lung function. In patients with normal lung function aerosol distribution was similar to that of <sup>81</sup>Kr<sup>m</sup>. In patients with airways obstruction, the aerosol tended to penetrate less well than <sup>81</sup>Kr<sup>m</sup> to the lung periphery and to show a less homogeneous distribution there. Quantitative analysis confirms that the aerosol technique is an effective substitute for <sup>81</sup>Kr<sup>m</sup> in patients with normal lung function. When lung function is impaired aerosol images may still be valuable particularly in confirming a diagnosis of pulmonary embolism though they must be interpreted with caution in attempting to exclude that diagnosis. It is concluded that small particle radioactive aerosols provide a readily available ventilation technique for clinical ventilation-perfusion imaging. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Quantitative comparison of <sup>99</sup>Tc<sup>m</sup>-aerosol and <sup>81</sup>Kr<sup>m</sup> ventilation images |
| Тип | paper |
| DOI | 10.1088/0143-0815/3/1/002 |
| Print ISSN | 0143-0815 |
| Журнал | Clinical Physics and Physiological Measurement |
| Том | 3 |
| Первая страница | 21 |
| Последняя страница | 30 |
| Аффилиация | J E Agnew; Dept. of Medical Phys. & Thoracic Medicine, Royal Free Hospital, London, UK |
| Аффилиация | R A Francis; Dept. of Medical Phys. & Thoracic Medicine, Royal Free Hospital, London, UK |
| Аффилиация | D Pavia; Dept. of Medical Phys. & Thoracic Medicine, Royal Free Hospital, London, UK |
| Аффилиация | S W Clarke; Dept. of Medical Phys. & Thoracic Medicine, Royal Free Hospital, London, UK |
| Выпуск | 1 |
