ART3H reconstruction of 7-pinhole tomographic myocardial perfusion imaging in the evaluation of coronary angioplasty
| Autor: | J. W. Van Giessen, A.J. van Dongen, J.H.Z. Banki, E.O. Robles de Medina, C.A. Ascoop, P.P. van Rijk |
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| Rok vydání: | 2003 |
| Předmět: |
Algebraic Reconstruction Technique
medicine.diagnostic_test business.industry medicine.medical_treatment computer.software_genre Myocardial perfusion imaging Software Voxel Angioplasty medicine Computer vision Pinhole (optics) Tomography Noise (video) Artificial intelligence Nuclear medicine business computer |
| Zdroj: | Proceedings. Computers in Cardiology 1988. |
| Popis: | Seven-pinhole tomography is considered a rather complicated imaging technique for getting three-dimensional morphological information of the myocardium. The authors overcame the technical shortcomings of past systems by optimizing the reconstruction software and parameters. ART3, a fast version of the ART (algebraic reconstruction technique) algorithm, can cope with data which are corrupted with a high level of noise and uses comparatively little computer storage space. ART3 was extended with a recently developed postreconstruction operator called Fizevo (find zero voxels) to obtain a modified algorithm was named ART3H. Fizevo can be considered as a shadow elimination technique. The modified system was evaluated for a group of 61 patients which underwent an elective coronary angioplasty. A diagnostic accuracy of 81% was achieved. This modified version of seven pinhole tomoscintigraphy appears to be equivalent to other tomographic methods. > |
| Databáze: | OpenAIRE |
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