Thallium-201 myocardial tomography with a rotating slant-hole collimator and a large number of projections

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Journal of Nuclear Medicine; (USA)

OSTI ID:6282805

Dale, S; Bone, D ^[1]

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1. Karolinska Institute, Huddinge (Sweden)

Tomographic imaging of the myocardium was performed using a gamma camera and a 30-degree rotating slant-hole collimator to register 64 projections from a restricted-view angle. Section images were reconstructed with a two-dimensional filtered backprojection technique. Performance in terms of resolution, effects of misalignment, and three-dimensional activity distribution was evaluated in phantom studies. In a limited clinical study, ten consecutive patients were imaged both with single-photon emission computed tomography (SPECT) and the method described. In the new method, the camera was orientated in the 30 degrees left anterior oblique position with 15 degrees cranial tilt. Due to the short distance from the myocardium to the camera, resolution within reconstructed section images was high, the noise level was comparatively low, and the mean activity level in the posterior wall was significantly higher (p less than 0.005) than in SPECT.

• OSTI ID: 6282805
• Journal Information: Journal of Nuclear Medicine; (USA), Journal Name: Journal of Nuclear Medicine; (USA) Vol. 31:10; ISSN 0161-5505; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
61 RADIATION PROTECTION AND DOSIMETRY
62 RADIOLOGY AND NUCLEAR MEDICINE
655003 -- Medical Physics-- Dosimetry
BETA DECAY RADIOISOTOPES
BODY
CAMERAS
CARDIOVASCULAR SYSTEM
COLLIMATORS
COMPUTERIZED TOMOGRAPHY
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
EMISSION COMPUTED TOMOGRAPHY
GAMMA CAMERAS
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MOCKUP
MUSCLES
MYOCARDIUM
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
PHANTOMS
RADIOISOTOPES
RESOLUTION
SECONDS LIVING RADIOISOTOPES
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
STRUCTURAL MODELS
THALLIUM 201
THALLIUM ISOTOPES
TOMOGRAPHY