Matches in SemOpenAlex for { <https://semopenalex.org/work/W56472871> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W56472871 abstract "Introduction Positron emission tomography (PET) is commonly performed using vasodilator stress, but exercise and dobutamine stress is available to patients with contraindications to vasodilators. Vasodilator PET appears to have prognostic value, however the prognostic value of PET using stressors which induce myocardial ischemia have not been well evaluated. Hypothesis To evaluate the prognostic value of myocardial demand ischemia induced by treadmill exercise and dobutamine PET. Methods 124 patients (mean age = 61.29 ± 10.73 years; 87 men) had treadmill exercise or dobutamine Rb-82 or N-13 ammonia PET. Images were assessed qualitatively using a 17-segment model and a semi-quantitative visual score (five-point scale) to calculate the summed stress score (SSS). Images were categorized as normal (SSS<4), abnormal (SSS ≥ 4) or inconclusive (SSS< 4 and suboptimal treadmill exercise or dobutamine stress). Follow-up was performed to ascertain outcomes (cardiac death, nonfatal MI and/or late revascularization. Results Of the 124 patients, 46 (37.1%) had a normal PET, 15 (12.1%) had an inconclusive study, and 63 (50.1%) had an abnormal PET (mean follow up 2.8 ± 1.4 years). There were no deaths or non-fatal MI but 1 late revascularization (annual event rate = 1.7%) in the group with a normal PET. Abnormal PET MPI group had 15 cardiac events (1 cardiac death, 4 nonfatal MI, and 10 late revascularization) with an annual event rate of 13.0% (p = 0.002). Conclusions Though small, this study suggests that myocardial PET perfusion defects resulting from demand ischemia induced by treadmill exercise and dobutamine stress may have prognostic value." @default.
- W56472871 created "2016-06-24" @default.
- W56472871 creator A5019286215 @default.
- W56472871 creator A5041018542 @default.
- W56472871 creator A5050890781 @default.
- W56472871 creator A5056264770 @default.
- W56472871 creator A5070896042 @default.
- W56472871 date "2007-10-16" @default.
- W56472871 modified "2023-09-26" @default.
- W56472871 title "Abstract 1775: Prognostic Value of Exercise and Dobutamine Positron Emission Tomography" @default.
- W56472871 doi "https://doi.org/10.1161/circ.116.suppl_16.ii_376-a" @default.
- W56472871 hasPublicationYear "2007" @default.
- W56472871 type Work @default.
- W56472871 sameAs 56472871 @default.
- W56472871 citedByCount "0" @default.
- W56472871 crossrefType "journal-article" @default.
- W56472871 hasAuthorship W56472871A5019286215 @default.
- W56472871 hasAuthorship W56472871A5041018542 @default.
- W56472871 hasAuthorship W56472871A5050890781 @default.
- W56472871 hasAuthorship W56472871A5056264770 @default.
- W56472871 hasAuthorship W56472871A5070896042 @default.
- W56472871 hasConcept C126322002 @default.
- W56472871 hasConcept C126838900 @default.
- W56472871 hasConcept C148699463 @default.
- W56472871 hasConcept C164705383 @default.
- W56472871 hasConcept C178853913 @default.
- W56472871 hasConcept C203092338 @default.
- W56472871 hasConcept C2775842073 @default.
- W56472871 hasConcept C2778213512 @default.
- W56472871 hasConcept C2778405248 @default.
- W56472871 hasConcept C2779464278 @default.
- W56472871 hasConcept C2780062172 @default.
- W56472871 hasConcept C2781185063 @default.
- W56472871 hasConcept C2781464450 @default.
- W56472871 hasConcept C500558357 @default.
- W56472871 hasConcept C535046627 @default.
- W56472871 hasConcept C71924100 @default.
- W56472871 hasConceptScore W56472871C126322002 @default.
- W56472871 hasConceptScore W56472871C126838900 @default.
- W56472871 hasConceptScore W56472871C148699463 @default.
- W56472871 hasConceptScore W56472871C164705383 @default.
- W56472871 hasConceptScore W56472871C178853913 @default.
- W56472871 hasConceptScore W56472871C203092338 @default.
- W56472871 hasConceptScore W56472871C2775842073 @default.
- W56472871 hasConceptScore W56472871C2778213512 @default.
- W56472871 hasConceptScore W56472871C2778405248 @default.
- W56472871 hasConceptScore W56472871C2779464278 @default.
- W56472871 hasConceptScore W56472871C2780062172 @default.
- W56472871 hasConceptScore W56472871C2781185063 @default.
- W56472871 hasConceptScore W56472871C2781464450 @default.
- W56472871 hasConceptScore W56472871C500558357 @default.
- W56472871 hasConceptScore W56472871C535046627 @default.
- W56472871 hasConceptScore W56472871C71924100 @default.
- W56472871 hasIssue "suppl_16" @default.
- W56472871 hasLocation W564728711 @default.
- W56472871 hasOpenAccess W56472871 @default.
- W56472871 hasPrimaryLocation W564728711 @default.
- W56472871 hasRelatedWork W1989385836 @default.
- W56472871 hasRelatedWork W2000480501 @default.
- W56472871 hasRelatedWork W2005061266 @default.
- W56472871 hasRelatedWork W2032598255 @default.
- W56472871 hasRelatedWork W2039862190 @default.
- W56472871 hasRelatedWork W2047399325 @default.
- W56472871 hasRelatedWork W2049849716 @default.
- W56472871 hasRelatedWork W2169286349 @default.
- W56472871 hasRelatedWork W2402183744 @default.
- W56472871 hasRelatedWork W56472871 @default.
- W56472871 hasVolume "116" @default.
- W56472871 isParatext "false" @default.
- W56472871 isRetracted "false" @default.
- W56472871 magId "56472871" @default.
- W56472871 workType "article" @default.