評估影響低輻射劑量胸部電腦斷層影像品質之因素及用於胸部疾病追蹤之可行性

The Appraisement of Affecting Factors of the Low Radiation Dose Chest Computed Tomography Image Quality and Feasibility of the Chest Disease Tracing

傅佳雯(Chia-Wen Fu) ； 林文瓊(Wen-Chiung Lin) ； 李國珍(Kuo-Chen Li) ； 林莉娟(Li-Chuan Lin) ； 張珊瑜(Yu-Shan Chang) ； 詹淑珍(Shu-Chen Chan) ； 許芳裕(Fang-Yu Hsu)

《中華放射線技術學雜誌》 29卷1期 (2005/06) Pp. 57-63

https://doi.org/10.30045/CJRT.200506.0007

摘要

對於胸腔的惡性腫瘤，電腦斷層是一項作為檢查及追蹤的利器，但其所造成的高輻射劑量卻不容我們忽視。由於胸腔內的肺臟是一充滿空氣的器官，所以使得X 射線在穿透肺部組織的衰減會較其他軟組織來的少，因此此次研究即著重在於找出在低輻射劑量電腦斷層掃描時，是否仍能維持好的診斷品質。選擇研究的患者為定期以電腦斷層追踪病情之惡性肺部腫瘤病患，在做完低劑量輻射電腦斷層掃描後之影像與原始的劑量之影像作比較，評估這樣的低劑量電腦斷層影像是否會影響其診斷價值。本研究同時也從病人的性別、年齡、體重、身體質量指數等因素研究那一些因素會影響影像品質。

關鍵字

低劑量電腦斷層 ； 影像品質 ； 胸腔疾病

並列摘要

The computed tomography is an useful technique of detecting and following the malignant tumor of chest, but the high dose examination actually can not be neglected. Due to the lung is filled by air. The x-ray penetration attenuation is lower as compared with other soft tissue in the thorax. The aim of the reserch emphatically lies in discovering that whether the low radiation dose computed tomography can maintain the diagnosis quality. In the study, all of the patients have malignant tuomr of lung and follow up computed tomography regularly. After comparision with the low dosage radiation computer tomography scanning, and the primitive dosage computed tomography scanning. Appraisement whether such low dosage computed tomography scanning image can affect its diagnosis value is made. At the same time, the facts which may be able to affect the image quality, including patient's sex, age, body weight and BMI are disscused in the study.

並列關鍵字

lower radiation dose computed tomography ； image quality ； chest disease