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氣管支擴張症에 있어서의 肺動脈 分包像에 대한 放射學的考察
최근식 최신의학사 1967 最新醫學 Vol.10 No.11
Bronchography had been performed for 21 among 62 cases, in which bronchiectasis was suspected by simple PA chest films during the period of January 1, 1965 to August 31, 1966. Definite diagnosis of bronchiectasis could be confirmed in 20 out of 21 cases, while the rest of 1 case was proved to be congenital developmental anomaly. 2 out of 20 cases were the ones without subjective symptoms and objective signs suggesting presence of the lesion. It sometimes is difficult to detect bronchiectasis associated with lobar [atelectasis in the lower lobes in PA chest films, because the diseased lobes are displaced medially and posteriorly, are frequently overshadowed by the mediastinum, particularly the heart, and appear to be normal. It is to be emphasized, however,. that the presence of such lesions could be diagnosed before doing special. studies, such as bronchography or tomography, by analysing the secondary roentgehographic manifestations in PA chest films, such as retraction or displacement toward the affected side of the Mum, mediastinum, particularly the heart, and diaphragm, hyperlucency of the remaining normal lung on the affected side due to compensatory emphysema, and abnormal distribution of the pulmonary arteries.
마스크 착용 조건에 따른 음성장애 환자의 음향학적 특성
최근식,박희준,김진동 한국언어치료학회 2024 言語治療硏究 Vol.33 No.1
Purpose: The purpose of this study is to investigate the characteristics of voice change in the group of patients with voice disorders with breathy voice characteristics due to wearing a face mask. Methods: The subjects of this study were 10 people with vocal nodules, 10 with vocal cord palsy, and 10 with leukoplakia. As a research tool, Praat, MDVP, ADSV, and GRBAS were used by collecting /a/ vowel sustained phonation to examine the acoustic characteristics of speech. Results: As for the acoustic and auditory perceptual characteristics according to the face mask wearing conditions, there were significant differences in voice intensity, SPI, CPP, and L/H ratio in the vocal cord nodules, and in vocal cord palsy, voice intensity, jitter, SPI, CPP, L/H ratio, A and S showed a significant difference. In leukoplakia, there were significant differences in voice intensity, jitter, shimmer, CPP, L/H ratio, G and R. Conclusions: It was found that the louder the noise and the more filters in the face mask, the more difficult it was to understand the characteristics of pathological voices by attenuating the noise energy. Accordingly, if the pathological voice is severe, it is necessary to be careful in interpreting the results when performing a voice assessment after wearing a face mask, and it is necessary to present systematic research results according to the noise level and face mask type in the future.