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micro-computed tomography

Ex vivo Morphometric Analysis of Coronary Stent using Micro-Computed Tomography

Ex vivo Morphometric Analysis of Coronary Stent using Micro-Computed Tomography

... 최근 작은 크기 표본의 영상 검사 방법으로 여러 기 술과 방법들이 개발 되고 있고 이중 한가지가 미세 전 산화 단층 촬영(micro-computed tomography; microCT)이 다 [5] . 이는 기존의 조직병리학적 분석에 비해 비파괴 적, 비침습적이면서 고해상도 영상을 얻을 수 있으며 3차원적 재구성이 가능하다는 장점이 있다. 또한 소프 ...

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Evaluation of canal preparation with Ni-Ti rotary files by micro computed tomography

Evaluation of canal preparation with Ni-Ti rotary files by micro computed tomography

... Recently Peters et al. assessed effects of Ni-Ti preparation techniques on root canal geometry by micro computed tomography. They concluded that while there were significant differences with respect ...

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Evaluation of remineralization and acid resistance effect in fluoride varnish by Micro-computed tomography

Evaluation of remineralization and acid resistance effect in fluoride varnish by Micro-computed tomography

... 불소바니쉬의 효과는 microhardness 10) , optical density 11) , polarized light 12) 와 confocal microscopy 13) 방법에 의하 여 평가되어 왔다. 본 연구에서는 재광화나 산저항성의 영향에 대한 정량적인 평가가 필요하리라 생각되어 시 편을 파괴하거나 화학적인 고정을 하지 않고 재광화의 정도를 정량화할 수 있는 방법인 ...

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Volumetric quantification of bone-implant contact using micro-computed tomography analysis based on region-based segmentation

Volumetric quantification of bone-implant contact using micro-computed tomography analysis based on region-based segmentation

... using micro- computed tomography (micro-CT) images has been devel- oped 16-19 and exhibits a high correlation with the results of histomorphometric ...in micro-CT analysis to separate ...

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3-dimensional reconstruction of mandibular canal at the interforaminal region using micro- computed tomography in Korean

3-dimensional reconstruction of mandibular canal at the interforaminal region using micro- computed tomography in Korean

... Micro-computed tomography (microCT) can produce high-resolution images and is an effective method for detailed evaluation of the internal structure of ...

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Observation of an extracted premolar 2.5 years after mineral trioxide aggregate apexification using micro-computed tomography

Observation of an extracted premolar 2.5 years after mineral trioxide aggregate apexification using micro-computed tomography

... ABSTRACT Although numerous studies have been conducted on apexification using mineral trioxide aggregate (MTA), direct observation of extracted human teeth after the procedure has been rarely reported. This case report ...

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Chitin-fibroin-hydroxyapatite membrane for guided bone regeneration: micro-computed tomography evaluation in a rat model

Chitin-fibroin-hydroxyapatite membrane for guided bone regeneration: micro-computed tomography evaluation in a rat model

... 6. Taguchi Y, Amizuka N, Nakadate M, Ohnishi H, Fujii N, Oda K, et al. A histological evaluation for guided bone regeneration induced by a collagenous membrane. Biomaterials. 2005;26(31):6158 –66. 7. Song JM, Shin SH, ...

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Quantitative Analysis of Tooth Mineral Content by High Resolution Micro-computed Tomography

Quantitative Analysis of Tooth Mineral Content by High Resolution Micro-computed Tomography

... Key words: Micro-CT, Mineral concentration, Tooth 서 론 비파괴적 투과성을 지닌 X-선은 물체의 내부 형태, 밀도, 균열 양상 등의 평가에 사용되어 왔으며, 의료 분 야에서도 중요한 진단 도구로 이용되어 왔다. 그러나 지 금도 X-선 사진을 정확하게 해석하는 것은 간단한 과정 이 아니다 . X-선 사진의 각 점은 X-선 빔이 지나가는 모든 ...

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Three-dimensional microstructure of human alveolar trabecular bone: a micro-computed tomography study

Three-dimensional microstructure of human alveolar trabecular bone: a micro-computed tomography study

... Some potential problems should be acknowledged. To guarantee sufficient thickness of the porous structure on the dental implant fixture, the diameter of the core material needs to be reduced, which could compromise its ...

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Quantification of Microstructures in Mice Alveolar Bone using Micro-computed tomography (${\mu}CT$)

Quantification of Microstructures in Mice Alveolar Bone using Micro-computed tomography (${\mu}CT$)

... To achieve three-dimensional evaluation of alveolar bone loss in periodontitis animal models, micro-computed tomog- raphy (micro-CT) has been used in recent studies [14,15]. This study was ...

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A study on enamel thickness of maxillary incisors using  X-ray micro computed tomography

A study on enamel thickness of maxillary incisors using X-ray micro computed tomography

... 측절치의 경우 근심과 원심에서는 유의한 차이가 없었고, 정중부와 근심, 정중부와 원심 사이에는 유의 한 차이가 있었는데 근심과 원심에서 정중부보다 법랑질이 더 두껍게 나타났다.. 그러나 이 방법은 절단된 평면에 따라 측정값 이 다양하기 때문에 기술적으로 문제가 있다.[r] ...

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Measurement of Space Dose Distribution during Exposure Micro Computed Tomography (μ-CT) for Scattering Rays

Measurement of Space Dose Distribution during Exposure Micro Computed Tomography (μ-CT) for Scattering Rays

... automated computed tomography, is used to detect lesion of a patient when diagnosing human ...quest, micro-CT is invented that produce more detail and concrete ...of micro-CT. The exterior of ...

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Effect of Nd:YAG laser irradiation on adherence of retrograde filling materials: evaluation by micro-computed tomography

Effect of Nd:YAG laser irradiation on adherence of retrograde filling materials: evaluation by micro-computed tomography

... Micro-CT analysis is an indirect way of evaluating the sealing ability of retrograde fillings. However, the results of more clinically relevant research using a dye or bacterial penetration technique vary ...

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Computed Tomography Technology

Computed Tomography Technology

... 뢴트겐의 엑스선 발견 이후 1917년 Radon이 피사 체의 여러 방향에서 얻은 투영데이터로부터 2차원 영상을 재구성할 수 있다는 이론이 증명되면서 CT 기술이 싹트기 시작했다. 1961년 Oldendorf는 CT 스캐너의 기본 원리를 연구하였고, 1967년 Houns- field의 연구로 1969년 최초로 CT 장치가 제작되었 다. 1972년 EMI사에서 computed ...

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Analysis of Particle Rearrangement during Sintering by Micro Focus Computed Tomography $({\mu}CT)$

Analysis of Particle Rearrangement during Sintering by Micro Focus Computed Tomography $({\mu}CT)$

... using micro focus computed tomography (µCT), combined with photogrammetric image analysis, can deliver the necessary experimental data to improve existing sintering ...

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Measurements of Micro-Defects in the Aluminum Thixoformed Part using Computed Tomography(CT) Technology

Measurements of Micro-Defects in the Aluminum Thixoformed Part using Computed Tomography(CT) Technology

... 너클 전체 및 인장시편에 대한 CT 촬영은 한국 생산기술연구원에서 운영되고 있는 산업용 3D CT 장비를 이용하여 수행하였다. 이 장치는 두 개의 X-선 발생 장치, Flat panel detector, 회전선반 및 컴 퓨터와 주변 장치들로 구성되어 있다. 본 장비 는 225 kV의 micro focus X-ray tube를 갖추었기 때문에 촬영하려는 물체의 크기 및 재질에 ...

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Whole Body Positron Emission Tomography/Computed Tomography

Whole Body Positron Emission Tomography/Computed Tomography

... Emission Tomography/Computed Tomography W hole body positron emission tomography (PET) using F-18 Fluoro- deoxyglucose (FDG) has been used for characterizing focal lesions, initial staging, ...

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Multiplanar spine computed tomography

Multiplanar spine computed tomography

... However , multiplanar spine CT is more diagnostic than axial computed tomography such as detecting the longitudinal dimension and demonstration of spinal canal... Materia1[r] ...

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Multidetector Row Computed Tomography  -

Multidetector Row Computed Tomography -

... 특히 관상동맥의 CT 조영상(그림 5)은 MD-CT의 도입에 의하여 새로이 시작되는 분야로서 매우 일반화 될 전망이며, 공간 해상능이 거의 도자술 관상동맥 조영술과 비슷한 영상을 수 년 내에 얻을 수 있을 것으로 예상된다.. 다 량의 조영제를 일시 주사(bolus injection)하는 것과 조영 제의 순환 시간의 정확한 측정은 좋[r] ...

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Computed tomography of renal tuberculosis

Computed tomography of renal tuberculosis

... 신우 및 신배의 변화에 있어서 섬유화가전반석이연 신우수축이 일어 냐는 반연 부분적협 착이 요판신우이 행부에 있으면 신우와 신배의 동시확장이 생긴마.. 그러나 신전체가 석회화펀 경 우나 신결석은 없었다..[r] ...

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