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廣瀨雄一(Yuichi, Hirose) 한국신석기학회 2005 한국신석기연구 Vol.- No.9
日常의 토기는 在地의 容器로도 代用이 가능했겠지만, 한편 代用할 수 없는 성격의 토기도 存在했다. 이것이 冠婚葬察 등의 의례를 위한 토기이며, 在地의 토기에서는 代用이 困難하다고 생각했기 때문이다. 이와 같이 彩色을 하며, 정교하고 小形의 搬入土器에 대해서는 調理具와 용도로써의 토기가 아니라 이것을 가지고 온 集団의 祭祀와의 관계를 考廬할 필요가 있다. 여기에서, 중요한 것은, 토가정보의 전달에도 男女에 의한 차이를 考慮할 必要가 있다. 土器製作에 直接관여 하지 않았던 男性이 交流를 맡았을 경우, 土器 製作技術의 완전한 전달은 수렵구나 어로구, 그 소재, 毛皮나 肉 등의 消費物資와 비교해도, 토기의 기술적인 部分의 伝達은 약했을 可能性이 높다. 여기에서, 東아시아에서 넓게 분포한 玦牀耳飾이나 漁勞具인 石銛, 石鋸의 분포범위에 비해 토기의 분포범위가 좁았다는 이유를 설명할 수 있다. 繩文時代中期 以降는 獲得한 情報를 採用해서 조·피를 栽培하는 地域이 日本列島의 어딘가에서 있다고 하더라도 不自然한 것은 아니다. 정보를 어떻게 活用한 것인가가 重要하며, 그 地域에 살고 있는 사람들의 取捨選擇, 그 判斷의 基底가 되는 文化的인 伝統이나 民族的인 嗜好 성질이 중요한 관건이다. The earthenware used in daily life is cheap and obtaining is easy. So It was possible to substitute it also with the earthenware of local. However, special earthenware was used for the ceremonies such as marriage, funerals, and festival. It is thought that substitution was difficult in the special earthenware. The coloring, and the elaborate earthenware and the carried small earthenware is no usage of cooking and no transportation tools. It is necessary to think about the relation to the festa of the group that has carried it. It is necessary to think about the difference by the man and woman as for the transmission of infom1ation on earthenware. If the man related exchange, the earthenware production technology is thought that power to transmit was weaker than the consumption goods such as the hunting tool, the fishing tool, the material , the fur, and meat. Allotment by the man and woman is assumed like this. In east Asia therefore, in fishing tool is thought that it was distributed in the large scope than distribution of earthenware. Information of cuftivation that millet etc are grown done in the Japaneseislands,, It is important how to have used information. A cultural tradition that becomes basic of the selection of people who live in the region and a racial favor and the choice are important.
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Transoral Robotic-Assisted Neurosurgery for Skull Base and Upper Spine Lesions
Jun Muto,Ichiro Tateya,Hirofumi Nakatomi,Ichiro Uyama,Yuichi Hirose 대한척추신경외과학회 2024 Neurospine Vol.21 No.1
Objective: The application of the da Vinci Surgical System in neurosurgery is limited due to technical difficulties requiring precise maneuvers and small instruments. This study details the advantages and disadvantages of robotics in neurosurgery and the reachable range of the transoral approach to lesions of the skull base and upper cervical spine. Methods: In a cadaver study, the da Vinci Xi robot, lacking haptic feedback, was utilized for sagittal and coronal approaches on 5 heads, facilitating dura suturing in 3, with a 30°-angled drill for bone removal. Results: Perfect exposure of all the nasopharyngeal sites, clivus, sellar, and choana, including the bilateral eustachian tubes, was achieved without any external incisions using this palatal split approach of transoral robotic surgery. The time required to perform a single stitch, knot, and complete single suture in robotic suturing of deep-seated were significantly less compared to manual suturing via the endonasal approach. Conclusion: This is the first report to show the feasibility of suturing the dural defect in deepseated lesions transorally and revealed that the limit of reach in the coronal plane via a transoral approach with incision of the soft palate is the foramen ovale. This preclinical investigation also showed that the transoral robotic approach is feasible for lesions extending from the sellar to the C2 in the sagittal plane. Refinement of robotic instruments for specific anatomic sites and future neurosurgical studies are needed to further demonstrate the feasibility and effectiveness of this system in treating benign and malignant skull base lesions.
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Jun Muto,Hidetoshi Murata,Seiji Shigekawa,Takafumi Mitsuhara,Daisuke Umebayashi,Ryo Kanematsu,Masahiro Joko,Tatsushi Inoue,Tomoo Inoue,Toshiki Endo,Yuichi Hirose 대한척추신경외과학회 2023 Neurospine Vol.20 No.3
Objective: The characteristics, imaging features, long-term surgical outcomes, and recurrence rates of primary spinal pilocytic astrocytomas (PAs) have not been clarified owing to their rarity and limited reports. Thus, this study aimed to analyze the clinical presentation, radiological features, pathological findings, and long-term outcomes of spinal PAs. Methods: Eighteen patients with spinal PAs who were surgically treated between 2009 and 2020 at 58 institutions were included in this retrospective multicenter study. Patient data, including demographics, radiographic features, treatment modalities, and long-term outcomes, were evaluated. Results: Among the 18 consecutive patients identified, 11 were women and 7 were men; the mean age at presentation was 31 years (3–73 years). Most PAs were located eccentrically, were solid or heterogeneous in appearance (cystic and solid), and had unclear margins. Gross total resection (GTR), subtotal resection (STR), partial resection (PR), and biopsy were performed in 28%, 33%, 33%, and 5% of cases, respectively. During a follow-up period of 65 ± 49 months, 4 patients developed a recurrence; however, the recurrence-free survival did not differ significantly between the GTR and non-GTR (STR, PR, and biopsy) groups. Conclusion: Primary spinal PAs are rare and present as eccentric and intermixed cystic and solid intramedullary cervical tumors. The imaging features of spinal PAs are nonspecific, and a definitive diagnosis requires pathological support. Surgical resection with prevention of neurological deterioration can serve as the first-line treatment; however, the resection rate does not affect recurrence-free survival. Investigation of relevant molecular biomarkers is required to elucidate the regrowth risk and prognostic factors.
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