Tomography, Emission-Computed, Single-Photon - Statistics & numerical data
Research News and Information

Monday, November 23, 2009

Residual brain viability, evaluated by (99m)Tc-ECD SPECT, in patients with suspected brain death and with confounding clinical factors.

29 Sep 2009 BACKGROUND: In 1968, the Harvard criteria for brain death diagnosis were introduced in clinical practice. These include no movements or breathing, no reflexes, and flat electroencephalogram in the absence of confounding factors, including ... Read more...

Myocardial perfusion, function, and dyssynchrony in patients with heart failure: baseline results from the single-photon emission computed tomography imaging ancillary study of the Heart Failure and A Controlled Trial Investigating Outcomes of Exercise TraiNing (HF-ACTION) Trial.

29 Sep 2009 BACKGROUND: There are currently limited data on the relationships between resting perfusion abnormalities, left ventricular ejection fraction (LVEF), New York Heart Association (NYHA) functional class, and exercise capacity as defined by peak VO(2) ... Read more...

Non-inferiority tests for clustered matched-pair data.

28 May 2009 Non-inferiority tests for matched-pair data where pairs are mutually independent may not be appropriate when pairs are clustered. The tests may require an adjustment to account for the correlation within a cluster. We consider the adjusted score and ... Read more...

Latest indexed articles for 'Tomography, Emission-Computed, Single-Photon - Statistics & numerical data'

These are the very latest articles for this heading:

• Residual brain viability, evaluated by (99m)Tc-ECD SPECT, in patients with suspected brain death and with confounding clinical factors. 29 Sep 2009
• Myocardial perfusion, function, and dyssynchrony in patients with heart failure: baseline results from the single-photon emission computed tomography imaging ancillary study of the Heart Failure and A Controlled Trial Investigating Outcomes of Exercise TraiNing (HF-ACTION) Trial. 29 Sep 2009
• Non-inferiority tests for clustered matched-pair data. 28 May 2009
• A feasibility study of the post-irradiation dose estimation with SPECT technique for BNCT. 3 Apr 2009
• Detection of single-vessel coronary artery disease by dipyridamole stress echocardiography: no longer a problem? 30 Mar 2009
• Experimental feasibility studies on a SPECT tomograph for BNCT dosimetry. 25 Mar 2009
• Stress/Rest Myocardial Perfusion Abnormalities by Gated SPECT: Still the Best Predictor of Cardiac Events in Stable Ischemic Heart Disease. 14 Mar 2009
• The importance of population-specific normal database for quantification of myocardial ischemia: comparison between Japanese 360 and 180-degree databases and a US database. 2 Feb 2009
• 'Intensity diffusion' is a better description than 'partial volume effect'. 19 Jan 2009
• An improved method for automatic segmentation of the left ventricle in myocardial perfusion SPECT. 19 Jan 2009
• Etiology and pathophysiology of new-onset heart failure: evaluation by myocardial perfusion imaging. 18 Jan 2009
• The additive prognostic value of perfusion and functional data assessed by quantitative gated SPECT in women. 18 Jan 2009
• The WOMEN study: what is the optimal method for ischemia evaluation in women? A multi-center, prospective, randomized study to establish the optimal method for detection of coronary artery disease (CAD) risk in women at an intermediate-high pretest likelihood of CAD: study design. 18 Jan 2009
• Incremental prognostic value of cardiac single-photon emission computed tomography after nitrate administration in patients with ischemic left ventricular dysfunction. 18 Jan 2009
• 123I-mIBG scintigraphy to predict risk for adverse cardiac outcomes in heart failure patients: design of two prospective multicenter international trials. 18 Jan 2009
• Will high-resolution/high-sensitivity SPECT ensure that PET is not the only survivor in nuclear medicine during the next decade? 12 Jan 2009
• Incremental prognostic value of (99m)Tc-tetrofosmin myocardial SPECT after percutaneous coronary intervention. 6 Jan 2009
• Prognostic table for predicting major cardiac events based on J-ACCESS investigation. 6 Jan 2009
• Multi-pinhole collimator design for small-object imaging with SiliSPECT: a high-resolution SPECT. 14 Dec 2008
• Interobserver reproducibility in the interpretation of 99mTc-labelled white blood cell scintigraphic images. 29 Nov 2008

See a longer list of these articles.

Technical information about 'Tomography, Emission-Computed, Single-Photon'

Definition: A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.

Descriptor UI: D015899

Alternative terms: Tomography, Emission-Computed, Single-Photon; CT Scan, Single-Photon Emission; CT Scan, Single Photon Emission; Radionuclide Tomography, Single-Photon Emission-Computed; Radionuclide Tomography, Single Photon Emission Computed; Tomography, Single-Photon, Emission-Computed; Single-Photon Emission Computerized Tomography; Single Photon Emission Computerized Tomography; Single-Photon Emission CT Scan; Single Photon Emission CT Scan; Single-Photon Emission-Computed Tomography; Emission-Computed Tomography, Single-Photon; Single Photon Emission Computed Tomography; Tomography, Single-Photon Emission-Computed; SPECT; CAT Scan, Single-Photon Emission; CAT Scan, Single Photon Emission; Single-Photon Emission Computer-Assisted Tomography; Single Photon Emission Computer Assisted Tomography;

Allowable Qualifiers: adverse effects; classification; economics; history; instrumentation; methods; mortality; nursing; psychology; standards; trends; utilization; veterinary; statistics & numerical data; contraindications; ethics;

Tree Number: E01.370.350.350.800.800; E01.370.350.600.350.800.800; E01.370.350.710.800.800; E01.370.350.825.800.800; E01.370.384.730.800.800;

Online Note: use TOMOGRAPHY, EMISSION-COMPUTED to search SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY & SPECT 1989

History Note: 90; was SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY & SPECT see TOMOGRAPHY, EMISSION-COMPUTED 1989

Technical Notes: DF: CT SINGLE PHOTON EMISS