Imaging of the microvascular distribution in the mandibular bone marrow using Dual Energy Computed Tomography Imaging; a trial run

使用双能计算机断层扫描成像对下颌骨髓中的微血管分布进行成像；

• 批准号: 23592760
• 负责人: TANAKA Ray
• 金额: $ 3.16万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23592760/
• 关键词: CT; 下顎骨; 顎骨骨髄; 微小血管; 脂肪組織; Dual Energy CT イメージング; 微小循環; Dual Energy CTイメージング

The aim was imaging of the microvascular distribution in the mandibular bone marrow using Dual Energy CT Imaging (DEI). Histopathological specimens of the mandibular bone and pre-operative CT images from the patients who underwent the resection of the mandibular disease were used. The extent of the microvascular distribution within the bone marrow on the histological specimen was subjectively assessed. Multi-Planar Reconstruction Images generated from the pre-operative CT images were compared with the histological findings. Creation of optimal CT images for analysis of the microvascularization in the bone marrow of the mandible was unsatisfactory. The bone marrow area was extremely small to visualize on CT images even with DEI. The area of adipose tissue was predominantly larger than that of microvessels distribution on histological images. It was conceivable that such microvascularization could not make the clear density variations on CT images.

目的是利用双能CT成像（DEI）对下颌骨髓微血管分布进行成像。使用了颌骨的组织病理学标本和接受下颌疾病切除术的患者的术前CT图像。主观评价组织学标本骨髓内微血管分布的程度。将术前CT图像生成的多平面重建图像与组织学结果进行比较。创建最佳的CT图像分析微血管在下颌骨骨髓是不令人满意的。即使有DEI，在CT图像上骨髓区域也非常小。组织学图像上脂肪组织面积明显大于微血管分布。可以想象，这样的微血管化不能使CT图像上的密度变化清晰。

项目成果

Reduction of metal artifacts for dental implant fixtures by monoenergetic imaging after Dual-Energy Computed Tomography

双能计算机断层扫描后通过单能成像减少牙科种植固定装置的金属伪影

• 发表时间: 2013
• 期刊: Oral Surgery Oral Medicine Oral Pathology Oral Radiology
• 影响因子: 2.9
• 作者: Ray Tanaka;Takafumi Hayashi;Makiko Ike;Yoshiyuki Noto;Tazuko K. Goto
• 通讯作者: Tazuko K. Goto

Dual Energy CT Imaging in Dentistry : A Clinical Trial for Jawbones

牙科中的双能 CT 成像：颌骨的临床试验

• 发表时间: 2011
• 作者: Yutaka Kato;Taro Muramatsu;Motoichiro Kato;Yoshiyuki Shibukawa;Masuro Shintani;Masaru Mimura;小正玲子，合田征司，吉川一志，竹内 摂，堂前英資，三木秀治，小正紀子，池尾 隆，山本一世．;田中礼
• 通讯作者: 田中礼