- 著者
- ZHANG AN YOSHIHIRO HIMURA TOSHIAKI KUMADA WATARU HAYASHIDA NOBORU ISHIKAWA MICHIYO NODA FUJIMASA KOHNO MASASHI KAMBAYASHI CHUICHI KAWAI
- 出版者
- The Japanese Circulation Society
- 雑誌
- JAPANESE CIRCULATION JOURNAL (ISSN:00471828)
- 巻号頁・発行日
- vol.56, no.4, pp.317-324, 1992-04-20 (Released:2008-04-14)
- 参考文献数
- 17
- 被引用文献数
- 15 22
To determine the characteristic change in the Doppler hepatic venous flow velocity pattern in patients with pulmonary hypertension (PH), 21 patients with PH in sinus rhythm were examined with pulsed Doppler echocardiography. The control group included 13 subjects with chest pain syndrome and normal pulmonary arterial pressure. The hepatic vein Doppler signal was biphasic with one peak during ventricular systole (S wave) and the other in diastole (D wave). A reversed signal was recorded after contraction (A wave). The peak velocity of the A wave (Va), S wave (Vs), and D wave (Vd), the time velocity integral of these waves (Vla, Vls, and Vld), the acceleration time (t-AC), and the slope of acceleration (s-AC) in the S wave were measured. Compared with controls the PH group had a higher value of Va (26.88±10.30 vs 13.41±3.69 cm/sec; p<0.01), Vla (2.55±1.18 vs 1.20±0.34cm; p<0.01). Vla/(Vls+Vld) (0.34±0.22 vs 0.14±0.06; p<0.01), and s-AC (372±156 vs 203±103 cm/sec2. p<0.01). They also had a shorter t-AC (101±32 vs 136±27 msec; p<0.01). There was a weak correlation between the reversed atrial flow and the right heart pressures (r=0.43 to 0.66). Thus, the hepatic venous flow velocity pat-tern by Doppler echocardiography is clinically useful in evaluating pulmonary hypertension.
- 著者
- Noboru Ishikawa Yuzo Hirayama Yasuo Miake Kei Kitamura Norio Kasahara Shinichi Abe Hitoshi Yamamoto
- 出版者
- THE SOCIETY FOR HARD TISSUE REGENERATIVE BIOLOGY
- 雑誌
- Journal of Hard Tissue Biology (ISSN:13417649)
- 巻号頁・発行日
- vol.28, no.3, pp.289-296, 2019 (Released:2019-07-31)
- 参考文献数
- 29
- 被引用文献数
- 2
In the field of forensic odontology, not only personal identification using oral conditions, including dental treatment marks and DNA typing, but also species identification, age or sex estimation using cranial or partial bones, and time after death may also be applicable as estimation methods. Among these many tasks, one of the most difficult is species identification of fragmented calvarium. This is because the calvarium has poor morphological features, except that it is a flat bone, and few reports have described how to differentiate it. In this study, a simple identification method for turtle shell (carapace and plastron) whose morphological characteristics closely resembled those of the calvarium was applied. As a result, in an enlarged image obtained using a stereoscopic microscope, the characteristics of each suture pattern could be confirmed. In the decalcified and non-decalcified bone specimens, the difference in the inner/outer laminar structure and the specific structural difference of the cancellous bone-equivalent part were confirmed. Furthermore, most of the features could be obtained in the destructive inspection when it was examined using micro CT imaging to determine whether discrimination by nondestructive inspection was possible or not. No significant difference in ingredients was found using the Electron Probe X-ray Micro Analyzer. The calvarium was more calcified than the carapace but less calcified than the plastron. From these results, we suggest that micro CT imaging is effective for discriminating between the calvarium and turtle shell in a short time.