光断層撮影、光断層撮影法、光トモグラフィ、オプティカルトモグラフィ
WordNet
- of or relating to or involving light or optics; "optical supplies"
- X-ray machine in which a computer builds a detailed image of a particular plane through an object from multiple X-ray measurements
PrepTutorEJDIC
- 視覚の,視力の / 光学用の
- 目の;視覚の
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/01/21 15:31:51」(JST)
[Wiki en表示]
Optical tomography |
Intervention |
A fiber-optic array for breast cancer detection by way of Diffuse Optical Tomography. |
MeSH |
D041622 |
Optical tomography is a form of computed tomography that creates a digital volumetric model of an object by reconstructing images made from light transmitted and scattered through an object.[1] Optical tomography is used mostly as a form of research in medical imaging.
Optical tomography relies on the object under study being at least partially light-transmitting or translucent, so it works best on soft tissues; imaging of breast and brain tissue are examples.
The high scatter-based attenuation involved is generally dealt with by using intense, often pulsed or intensity modulated, light sources, and highly sensitive light sensors, and the use of infrared light at frequencies where body tissues are most transmissive. Soft tissues are highly scattering but weakly absorbing in the near-infrared and red parts of the spectrum, so that this is the wavelength range usually used.
One recent variant of optical tomography uses optical time-of-flight sampling as an attempt to distinguish transmitted light from scattered light. This concept has been used in several academic and commercial systems for breast cancer imaging and cerebral measurement. The key to separation of absorption from scatter is the use of either time-resolved or frequency domain data which is then matched with a diffusion theory based estimate of how the light propagated through the tissue. The measurement of time of flight or frequency domain phase shift is essential to allow separation of absorption from scatter with reasonable accuracy.
A more recent development since about the year 2000, has been the development of systems for fluorescence tomography of tissue. In these systems, the fluorescence signal transmitted through the tissue is normalized by the excitation signal transmitted through the tissue, and so many of the fluorescence tomography systems do not require the use of time-resolved or frequency domain data, although research is still ongoing in this area. Since the applications of fluorescent molecules in humans are fairly limited, most of the work in fluorescence tomography has been in the realm of pre-clinical cancer research. Both commercial systems and academic research have been shown to be effective in tracking tumor protein expression and production, and tracking response to therapies.
Optical tomography found its application in industry as a sensor of thickness and internal structure of semiconductors.[2]
Contents
- 1 See also
- 2 References
- 3 Further reading
- 4 External links
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See also
- Optical coherence tomography
- Diffuse Optical Imaging
- Computed tomography laser mammography
References
- ^ Optical+Tomography at the US National Library of Medicine Medical Subject Headings (MeSH)
- ^ ^ Wojtek J. Walecki and Fanny Szondy, "Integrated quantum efficiency, reflectance, topography and stress metrology for solar cell manufacturing", Sunrise Optical LLC, Proc. SPIE 7064, 70640A (2008); doi:10.1117/12.797541
Further reading
- Haisch, C. (2012). "Optical Tomography". Annual Review of Analytical Chemistry 5: 57–77. doi:10.1146/annurev-anchem-062011-143138. PMID 22524216. edit
External links
- Optical tomography at Imperial College, London
- Optical tomography at University College, London
- "Boobs, Babes and Blood" - Article on physics.org
Medical testing : Medical imaging · Radiology · (ICD-9-CM V3 87–88, ICD-10-PCS B, CPT 70010–79999)
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X-ray/
medical radiography/
Industrial radiography |
2D
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Medical: Pneumoencephalography · Dental radiography · Sialography · Myelography · CXR (Bronchography) · AXR / KUB · DXA/DXR · Upper gastrointestinal series/Small bowel follow-through/Lower gastrointestinal series · Cholangiography/Cholecystography · Mammography · Pyelogram · Cystography · Arthrogram · Hysterosalpingography · Skeletal survey · Angiography (Angiocardiography, Aortography) · Venography · Lymphogram
Industrial: Radiographic testing
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3D / XCT
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Medical: CT pulmonary angiogram · Cardiac CT · Abdominal and pelvic CT (Virtual colonoscopy) · CT angiography · CT head · pQCT · Spiral computed tomography · High resolution CT · Whole body imaging (Full-body CT scan) · Electron beam tomography
Industrial: Industrial CT Scanning
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Other
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Fluoroscopy
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MRI |
MRI of brain and brain stem · MR neurography · Cardiac MRI/Cardiac MRI perfusion · MR angiography · MR cholangiopancreatography · Breast MRI
Functional MRI · Diffusion MRI
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Ultrasound |
Echocardiography / Doppler echocardiography (TTE · TEE) · Intravascular · Gynecologic · Obstetric · Echoencephalography · Transcranial doppler · Abdominal ultrasonography · Transrectal · Breast ultrasound · Transscrotal ultrasound · Carotid ultrasonography
Contrast-enhanced · 3D ultrasound · Endoscopic ultrasound · Emergency ultrasound (FAST · Pre-hospital ultrasound) · Duplex
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Radionuclide |
2D / scintigraphy
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Cholescintigraphy · Scintimammography · Ventilation/perfusion scan · Radionuclide ventriculography · Radionuclide angiography · Radioisotope renography · Sestamibi parathyroid scintigraphy · Radioactive iodine uptake test · Bone scintigraphy · Immunoscintigraphy
full body: Octreotide scan · Gallium 67 scan · Indium 111 WBC scan
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3D / ECT
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SPECT (gamma ray): SPECT of brain, Myocardial perfusion imaging
PET (positron): Brain PET, Cardiac PET, PET mammography, PET-CT
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Optical laser |
Optical tomography (Optical coherence tomography) · Confocal microscopy · Endomicroscopy
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Thermography |
Breast thermography
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UpToDate Contents
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English Journal
- Adjunctive use of systematic retinal thickness map analysis to monitor disease activity in punctate inner choroidopathy.
- Madhusudhan S1,2, Keane PA3, Denniston AK4,5,6.
- Journal of ophthalmic inflammation and infection.J Ophthalmic Inflamm Infect.2016 Dec;6(1):9. doi: 10.1186/s12348-016-0073-4. Epub 2016 Mar 10.
- A challenge in the management of 'white dot syndromes' is the lack of sensitive objective measures of disease activity. Retinal thickness maps from spectral domain optical coherence tomography (SD-OCT) inform treatment decisions in other retinal conditions such as age-related macular degeneration an
- PMID 26965893
- Rickettsia retinitis cases in India: a few comments.
- Tripathy K1, Chawla R2, Sharma YR2, Vohra R2.
- Journal of ophthalmic inflammation and infection.J Ophthalmic Inflamm Infect.2016 Dec;6(1):7. doi: 10.1186/s12348-016-0076-1. Epub 2016 Feb 27.
- An important cause of infectious retinitis, not well-described in Indian literature, has been analyzed in detail systematically by Kawali A. and colleagues. However, Rickettsia retinitis (RR) was diagnosed at titres of 1:160 by the Weil-Felix test (WFT). The sensitivity and specificity of WFT at thi
- PMID 26920002
- Automated classification of optical coherence tomography images of human atrial tissue.
- Gan Y1, Tsay D2, Amir SB1, Marboe CC3, Hendon CP1.
- Journal of biomedical optics.J Biomed Opt.2016 Oct 1;21(10):101407. doi: 10.1117/1.JBO.21.10.101407.
- PMID 26926869
Japanese Journal
- High-power supercontinuum generation using high-repetition-rate ultrashort-pulse fiber laser for ultrahigh-resolution optical coherence tomography in 1600 nm spectral band
- Plasma Pentraxin3 Level Is Associated With Plaque Vulnerability Assessed by Optical Coherence Tomography in Patients With Coronary Artery Disease
- Glycemic Variability on Continuous Glucose Monitoring System Correlates With Non-Culprit Vessel Coronary Plaque Vulnerability in Patients With First-Episode Acute Coronary Syndrome – Optical Coherence Tomography Study –
Related Links
- Optical tomography is a form of computed tomography that creates a digital volumetric model of an object by reconstructing images made from light transmitted and scattered through an object. [1] Optical tomography is used mostly ...
- 図書館でこの資料を入手! Optical coherence tomography : principles and applications. [Mark E Brezinski] -- The most up-to-date source for applications and timely market issues of a new medical high-resolution imaging technology.
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- 光トモグラフィ、光断層撮影法、オプティカルトモグラフィ
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- 英
- optical tomography
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- 光トモグラフィ、光断層撮影、オプティカルトモグラフィ
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- 英
- optical tomography
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- 光断層撮影法、光断層撮影、オプティカルトモグラフィ
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- 英
- optical tomography
- 関
- 光トモグラフィ、光断層撮影法、光断層撮影
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- optically、optics
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