FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W188095058> ?p ?o ?g. }

• W188095058 abstract "548 Objectives: Significant advantages are realized by MP-SPECT in that all images are active throughout the entire acquisition period. This approach provides a consistent input image set for SPECT reconstruction, minimizing artifacts induced by inconsistencies between sequential images. Performance was evaluated using standard resolution and homomorphic cardiac phantoms as well as by comparative patient imaging. Methods: Using 3 NaI(Tl) detectors (25 × 40 cm) to form 6 views each by multi-pinhole collimation increases MP-SPECT sensitivity. The modification was accomplished by remounting the 3 detectors from a Picker Prism 3000XP with the long axis of the detector parallel to the patient’s longitudinal body axis. The two outer detectors are positioned at a 67.5 deg viewing angle relative to the center LAO detector. System design acheived a 25 cm dia reconstruction volume centered 203 mm from the middle of collimators. Data acquisition is accomplished in list-mode format to facilitate scatter, crosstalk and motion correction. Reconstructions were accomplished with 12 iterations by MLEM algorithm and data interpretation utilized Circumferential Profile Analysis (CPA). Results: System performance with 6 mm pinholes showed comparable resolution (10 mm FWHM) to an R-SPECT system using the same detectors with LEHR collimation. MP-SPECT sensitivity was 4 times greater than that of the comparable R-SPECT system. The improved sensitivity of the MP-SPECT system provides the following benefits: 1. Facilitates clinical rest/stress imaging of Tc-99m and Tl-201 simultaneously. 2. Allows use of upper and lower peaks of Tl-201 for attenuation compensation. 3. Permits correlative motion correction of clinical images on a beat-by-beat basis. 4. Achieves accurate computation of cardiac volumes and wall thickness. 5. Performs true dynamic MP-SPECT flow studies. Conclusions: The MP-SPECT system described here requires no moving parts which allows simultaneous image acquisition, achieves excellent statistical content, eliminates or corrects the most serious artifactual challenges to high-resolution stress/rest and gated MPI, is well suited to functional analysis of gated MPI or dynamic flow studies, and is well tolerated by patients with compromised endurance, mobility and size." @default.
• W188095058 created "2016-06-24" @default.
• W188095058 creator A5019279422 @default.
• W188095058 creator A5075021606 @default.
• W188095058 creator A5085044256 @default.
• W188095058 date "2007-05-01" @default.
• W188095058 modified "2023-09-23" @default.
• W188095058 title "Modification of a triple-head rotational SPECT (R-SPECT) system to perform stationary multi-pinhole SPECT (MP-SPECT) for myocardial perfusion imaging (MPI)" @default.
• W188095058 hasPublicationYear "2007" @default.
• W188095058 type Work @default.
• W188095058 sameAs 188095058 @default.
• W188095058 citedByCount "1" @default.
• W188095058 crossrefType "journal-article" @default.
• W188095058 hasAuthorship W188095058A5019279422 @default.
• W188095058 hasAuthorship W188095058A5075021606 @default.
• W188095058 hasAuthorship W188095058A5085044256 @default.
• W188095058 hasConcept C104293457 @default.
• W188095058 hasConcept C115961682 @default.
• W188095058 hasConcept C120665830 @default.
• W188095058 hasConcept C121332964 @default.
• W188095058 hasConcept C141379421 @default.
• W188095058 hasConcept C154945302 @default.
• W188095058 hasConcept C205372480 @default.
• W188095058 hasConcept C2776700484 @default.
• W188095058 hasConcept C2780441642 @default.
• W188095058 hasConcept C2984398910 @default.
• W188095058 hasConcept C2989005 @default.
• W188095058 hasConcept C34445779 @default.
• W188095058 hasConcept C41008148 @default.
• W188095058 hasConcept C520434653 @default.
• W188095058 hasConcept C55020928 @default.
• W188095058 hasConcept C71924100 @default.
• W188095058 hasConcept C94915269 @default.
• W188095058 hasConceptScore W188095058C104293457 @default.
• W188095058 hasConceptScore W188095058C115961682 @default.
• W188095058 hasConceptScore W188095058C120665830 @default.
• W188095058 hasConceptScore W188095058C121332964 @default.
• W188095058 hasConceptScore W188095058C141379421 @default.
• W188095058 hasConceptScore W188095058C154945302 @default.
• W188095058 hasConceptScore W188095058C205372480 @default.
• W188095058 hasConceptScore W188095058C2776700484 @default.
• W188095058 hasConceptScore W188095058C2780441642 @default.
• W188095058 hasConceptScore W188095058C2984398910 @default.
• W188095058 hasConceptScore W188095058C2989005 @default.
• W188095058 hasConceptScore W188095058C34445779 @default.
• W188095058 hasConceptScore W188095058C41008148 @default.
• W188095058 hasConceptScore W188095058C520434653 @default.
• W188095058 hasConceptScore W188095058C55020928 @default.
• W188095058 hasConceptScore W188095058C71924100 @default.
• W188095058 hasConceptScore W188095058C94915269 @default.
• W188095058 hasLocation W1880950581 @default.
• W188095058 hasOpenAccess W188095058 @default.
• W188095058 hasPrimaryLocation W1880950581 @default.
• W188095058 hasRelatedWork W1547676286 @default.
• W188095058 hasRelatedWork W1884762484 @default.
• W188095058 hasRelatedWork W1986581784 @default.
• W188095058 hasRelatedWork W1990290955 @default.
• W188095058 hasRelatedWork W2001709366 @default.
• W188095058 hasRelatedWork W2030644841 @default.
• W188095058 hasRelatedWork W2037749773 @default.
• W188095058 hasRelatedWork W2128779873 @default.
• W188095058 hasRelatedWork W2130195258 @default.
• W188095058 hasRelatedWork W2148953826 @default.
• W188095058 hasRelatedWork W2172099666 @default.
• W188095058 hasRelatedWork W2262394400 @default.
• W188095058 hasRelatedWork W2485688806 @default.
• W188095058 hasRelatedWork W2523320075 @default.
• W188095058 hasRelatedWork W2539542315 @default.
• W188095058 hasRelatedWork W2544488227 @default.
• W188095058 hasRelatedWork W2897161818 @default.
• W188095058 hasRelatedWork W2991271323 @default.
• W188095058 hasRelatedWork W3155798509 @default.
• W188095058 hasRelatedWork W999753916 @default.
• W188095058 hasVolume "48" @default.
• W188095058 isParatext "false" @default.
• W188095058 isRetracted "false" @default.
• W188095058 magId "188095058" @default.
• W188095058 workType "article" @default.