title: New reconstruction algorithm, distance dependent exact, with reduced statistical α error, dedicated to emission tomography using a collimator with large and long holes.
abstract: SPECT (single photon emission computerized tomography) is physically one of the worst medical imaging modalities. Despite a considerable and still increasing medical impact, its spatial resolution (beyond 1 cm) and its sensitivity (less than 10(-4)) are both awful. This situation is mainly due to the use of a thin parallel hole collimator. In addition the application of the unfitted radon-transform worsens the figure.
authors.affiliation: LISA : Laboratoire d'ingénierie des systèmes automatisés. Université d'Angers 62 Avenue Notre Dame du Lac 49000 France.
authors.forename: Christian
authors.initials: C
authors.lastname: Jeanguillaume
authors.forename: Richard
authors.initials: R
authors.lastname: Simonnet
authors.forename: Hervé
authors.initials: H
authors.lastname: Rakotonirina
authors.forename: Jean Jacques
authors.initials: JJ
authors.lastname: Loeb
mesh_terms: D000465:Algorithms; D016477:Artifacts; D003627:Data Interpretation, Statistical; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation* / Q000379:methods*