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• W2133442907 abstract "89 Rotational Acquisition as Compared Normal Acquisition Reduces the Ionisizing Radiation and Contrast Dosage During Elective Diagnostic Coronary Angiography Margaret Arstall, Joe Valente ∗, Mark Corkill Lyell McEwin Hospital, Eleizabeth Vale, SA, Australia Background: Exposure to Ionising Radiation (IR) during Coronary Angiography in relative terms is subsequently higher than other imagingmodalities. Legislation dictates to radiationworkers toadhere to theALARA(as lowas reasonably achievable) principle. The effects of IR have been well documented, and being a new cardiovascular interventionsuite, akeyareaofourequipment selectioncriteria was the reduction of radiation exposure, i.e. dose affective product (DAP) to patients and staff. It has been previously hypothesized that rotational acquisition offered a substantial dose reduction coupledwithmaintaininggood practice and inbuilt primary beamfiltration.With reduced runs we also hypothesized that this method of acquisition would reduce the quantity of intravenous contrast used; therefore decreasing the risk of contrast induced renal toxicity. Method: We undertook an audit of 49 patients, 34 with rotation, and 15 with “normal” non-rotational acquisition. We analysed the data from four cardiologists with similar technique. Patients were to be elective, diagnostic coron w r u R 3 C T t a C e a C n c s t P d t p p d 90 Clinical outcomes following stress echocardiography within an open-access referral system in Australia Jennifer Coller ∗, Alex Adel, Celia Ting, Louise Roberts, Gishel New, Jennifer Cooke, P.M. Srivastava Box Hill Hospital, Victoria, Australia Objectives:Multiple large international trials have shown exercise stress echocardiography (ESE) to be a powerful predictor of future adverse cardiac events. Our aim is to validate the prognostic value of ESEwithin an open access referral system for cardiac investigation. Methods: We identified 897 consecutive patients referred for ESE at Box Hill Hospital from January to June 2006. To date, outcomes for 196 patients have been determined via clinical records review, telephone contact andNational Death Index. Mean (±S.D.) time to follow up was 693± 28 days. Clinical events were defined as myocardial infarction, revascularization, cardiac and non-cardiac death. Results: There were equal numbers of male and female patients enrolled, at a mean age of 60± 12 years. Risk factors includeddiabetes (10%), smoking (35%),hypertension (47%), hypercholesterolaemia (41%) and family history of ischaemic heart disease (25%). A prior history of revascularisation was present in 19% of patients. There was a low event rate and no deaths occurred during the period of follow-up. The negative predictive value (NPV=98.8%) c l" @default.
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• W2133442907 date "2008-01-01" @default.
• W2133442907 modified "2023-09-28" @default.
• W2133442907 title "Rotational Acquisition as Compared Normal Acquisition Reduces the Ionisizing Radiation and Contrast Dosage During Elective Diagnostic Coronary Angiography" @default.
• W2133442907 doi "https://doi.org/10.1016/j.hlc.2008.05.090" @default.
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