3.11

PENA, H; CANTINHO, G; SHWARTZ, S; Figueiredo, Sérgio; MARONA, D; MONTEIRO, J; GODINHO, F

doi:10.1016/j.nuclcard.2007.06.024

Cited by 3 publications

(3 citation statements)

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“…[2][3][4][5][6][7][8][9][10][11][12] In the present study, perfusion defect extent and severity assessed by visual analysis by expert observers and quantified using a standard 17-segment model (SSSs, SRSs, and SDSs) were also no different for ''quarter-time'' WBR compared to ''full-time'' OSEM. However, the number of patients with perfusion abnormalities was relatively limited (n = 45); therefore, conclusions regarding characterization of perfusion defects and associated wall motion abnormalities with ''quarter-time'' WBR are somewhat limited.…”

Section: Discussionmentioning

confidence: 69%

“…We and other investigators have reported that compared to filtered back projection (FBP), WBR, which models noise in the reconstruction process, maintains or even improves myocardial perfusion SPECT quality, even with lower count density ''halftime'' acquisitions. [6][7][8][9][10][11][12] Because the WBR algorithm has the potential to cope with even lower count density data with higher noise content, we postulated that this new software method could be further modified to provide diagnostic quality gated myocardial perfusion SPECT with even shorter, ''quarter-time'' stress and rest acquisitions. 13,14 Based on phantom studies and pilot patient results, the WBR approach was optimized to address quarter-time statistics.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wide beam reconstruction “quarter-time” gated myocardial perfusion SPECT functional imaging: a comparison to “full-time” ordered subset expectation maximum

DePuey

Bommireddipalli

Clark

et al. 2009

Journal of Nuclear Cardiology

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Section: Discussionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Wide beam reconstruction “quarter-time” gated myocardial perfusion SPECT functional imaging: a comparison to “full-time” ordered subset expectation maximum

DePuey

Bommireddipalli

Clark

et al. 2009

Journal of Nuclear Cardiology

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“…A comparison of dynamic-SPECT, a novel technology for high-speed MPI, with standard image acquisition showed increased count sensitivity and resolution with acquisition times of only 2 to 4 min (1). Scan time was also reduced in a WBR study, demonstrating no differences in quantitative indexes of LV function, thickening, and volumes (2), and a phantom study of iterative reconstruction combined with CT-based attenuation correction and scatter correction showed good correlation with 2340Russell et al JACC Vol. 50, No.…”

Section: Original Research: Abstract Contributionsmentioning

confidence: 93%

Highlights of the 2007 Scientific Sessions of the American Society of Nuclear Cardiology

Russell¹,

Abbott²,

Arrighi³

et al. 2007

Journal of the American College of Cardiology

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The 12th annual Scientific Sessions of the American Society of Nuclear Cardiology (ASNC) (chaired by Dr. Brian Abbott) were held in San Diego, California, from September 6 through 9, 2007. The meeting, entitled "Cardiac Imaging: Imagine the Future," attracted over 1,700 attendees. The scientific sessions were structured along specifically designed tracks, including the technical, core, and advanced tracks focusing on nuclear cardiac imaging and a dedicated computed tomography (CT) track, addressing the growing role of CT in noninvasive cardiac imaging and its integration with nuclear techniques in hybrid cardiac imaging. These tracks were complemented by the plenary sessions, which included keynote speakers addressing the role of nuclear cardiology in the healthcare system. Original research was presented in abstract presentations and a Young Investigator Award competition. Plenary SessionsDr. Robert Bonow gave the sixth annual Mario Verani Memorial Lecture, which is presented each year at the ASNC annual meeting by a prominent nuclear cardiologist, in memory of Dr. Mario Verani (1943 to 2001, a pioneer in nuclear cardiology and founder and past president of the ASNC. Dr. Bonow pointed out the gains that have been made in the fight against cardiovascular disease in the U.S., with deaths due to coronary artery disease (CAD) declining since the 1970s. With this backdrop, he posed the question: What role does imaging play in improved outcomes? There has been a tremendous increase, on the basis of data from the Centers for Medicare and Medicaid Services and other sources, in the number of stress tests performed over the past 10 years, owing in large part to increases in myocardial perfusion imaging (MPI). With this increase comes an increase in cost, and Dr. Bonow asked whether this added cost provides added value. Cardiac imaging, mostly nuclear imaging and echocardiography at this point in time, has been shown to be useful for the diagnosis of CAD. In addition, there is a wealth of data, particularly regarding nuclear imaging, supporting the prognostic value of such tests. A normal study portends an excellent prognosis, whereas the prognosis becomes progressively worse with increasing degrees of abnormality of these tests. He noted, however, that all of the prognostic studies were retrospective, nonrandomized trials.

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Imaging Highlights From the European Society of Cardiology, American Society of Nuclear Cardiology, and Heart Failure Society of America

Knuuti

Poldermans²,

Udelson

et al. 2008

JACC: Cardiovascular Imaging

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3.11

Cited by 3 publications

References 0 publications

Wide beam reconstruction “quarter-time” gated myocardial perfusion SPECT functional imaging: a comparison to “full-time” ordered subset expectation maximum

Wide beam reconstruction “quarter-time” gated myocardial perfusion SPECT functional imaging: a comparison to “full-time” ordered subset expectation maximum

Highlights of the 2007 Scientific Sessions of the American Society of Nuclear Cardiology

Imaging Highlights From the European Society of Cardiology, American Society of Nuclear Cardiology, and Heart Failure Society of America

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