Marieさんの博士学位審査が行われました (7/29; 高井ホール)
堂々とした発表、質疑応答でした。
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Marieさんの博士学位審査が行われました (7/29; 高井ホール) 堂々とした発表、質疑応答でした。 ![]() ![]() 第64回日本先天異常学会で発表しました(2024.07.26-27, 東京、江戸川区) P-12 ヒト胎児期における大腸の還納、固定時期の解析 P-21 拡散テンソル画像(DTI)を用いたヒト胚子期・胎児期初期における舌筋の形態形成の検討 P-39 拡散テンソル画像を用いた水晶体線維細胞の配向性の検討 岩佐さんの僧帽筋形成についての論文がJ Anatomyに受諾されました。MRI_DTIを用いて僧帽筋形成過程を、外観だけでなく、椎体レベルごとの筋線維の走行まで観察しました。
![]() 69. Iwasa Y, Kanahashi T, Imai H, Otani H, Yamada S, Takakuwa T. Human trapezius muscle development during early fetal period. J Anatomy 2024, in press, doi: 10.1111/joa.14116 Abstract This study aimed to observe human trapezius muscle (TpzM) development during the early fetal period and apply diffusion tensor imaging (DTI) analysis to describe the muscle architecture that leads to physiological functions. Human embryonic and early fetal specimens were selected for this study. TpzM was first detected at Carnegie stage 20. The position of the TpzM changed with the formation of the scapula, clavicle, and vertebrae, which are its insertions and origins. DTI revealed the fiber orientation from each vertebral level to dissect each muscle. Fiber orientation in the ventral view gradually changed from the cervical to thoracic vertebrae, except for the middle part at which the insertions changed, which was almost similar in all early fetal specimens. The TpzM volume increased from C1 to C7 in the upper part, reached local maxima at C6 and C7 in the middle, and then decreased. These muscles can be categorized into three parts according to their insertions and presented with the features of each part. The fiber orientation and distribution of the three parts at the vertebral level were almost constant during the early fetal period. The border between the upper and middle parts was mainly located around the C6 and C7 vertebral levels, whereas the middle and lower parts were between the Th1 and Th2 vertebral levels. A three-dimensional change in the fiber orientation in the upper part of the TpzM according to the vertebral level was noticeable. Our data will help to elucidate the developmental processes of TpzM. |