Idioma:

Iterative model reconstruction reduces calcified plaque volume in coronary CT angiography

Károlyi, Mihály ; Szilveszter, Bálint ; Kolossváry, Márton ; Takx, Richard A.P ; Celeng, Csilla ; Bartykowszki, Andrea ; Jermendy, Ádám L ; Panajotu, Alexisz ; Karády, Júlia ; Raaijmakers, Rolf ; Giepmans, Walter ; Merkely, Béla ; Maurovich-Horvat, Pál

European journal of radiology, 2017-02, Vol.87, p.83-89 [Periódico revisado por pares]

Ireland: Elsevier B.V

Texto completo disponível

Citações Citado por

Enviar para

Título:
Iterative model reconstruction reduces calcified plaque volume in coronary CT angiography
Autor: Károlyi, Mihály ; Szilveszter, Bálint ; Kolossváry, Márton ; Takx, Richard A.P ; Celeng, Csilla ; Bartykowszki, Andrea ; Jermendy, Ádám L ; Panajotu, Alexisz ; Karády, Júlia ; Raaijmakers, Rolf ; Giepmans, Walter ; Merkely, Béla ; Maurovich-Horvat, Pál
Assuntos: Aged ; Algorithms ; Atherosclerotic plaque quantification ; Cardiac imaging techniques ; Computed Tomography Angiography - methods ; Coronary Angiography - methods ; Coronary artery disease ; Coronary CT angiography ; Female ; Humans ; Image reconstruction ; Male ; Middle Aged ; Plaque, Atherosclerotic - diagnostic imaging ; Radiation Dosage ; Radiographic Image Interpretation, Computer-Assisted - methods ; Radiology ; Reproducibility of Results ; Tomography, X-Ray Computed - methods
É parte de: European journal of radiology, 2017-02, Vol.87, p.83-89
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Abstract Objective To assess the impact of iterative model reconstruction (IMR) on calcified plaque quantification as compared to filtered back projection reconstruction (FBP) and hybrid iterative reconstruction (HIR) in coronary computed tomography angiography (CTA). Methods Raw image data of 52 patients who underwent 256-slice CTA were reconstructed with IMR, HIR and FBP. We evaluated qualitative, quantitative image quality parameters and quantified calcified and partially calcified plaque volumes using automated software. Results Overall qualitative image quality significantly improved with HIR as compared to FBP, and further improved with IMR (p < 0.01 all). Contrast-to-noise ratios were improved with IMR, compared to HIR and FBP (51.0 [43.5-59.9], 20.3 [16.2-25.9] and 14.0 [11.2-17.7], respectively, all p<0.01) Overall plaque volumes were lowest with IMR and highest with FBP (121.7 [79.3-168.4], 138.7 [90.6-191.7], 147.0 [100.7-183.6]). Similarly, calcified volumes (>130 HU) were decreased with IMR as compared to HIR and FBP (105.9 [62.1-144.6], 110.2 [63.8-166.6], 115.9 [81.7-164.2], respectively, p < 0.05 all). High-attenuation non-calcified volumes (90-129 HU) yielded similar values with FBP and HIR (p = 0.81), however it was lower with IMR (p<0.05 both). Intermediate- (30-89 HU) and low-attenuation (<30 HU) non-calcified volumes showed no significant difference (p = 0.22 and p = 0.67, respectively). Conclusions IMR improves image quality of coronary CTA and decreases calcified plaque volumes.
Editor: Ireland: Elsevier B.V
Idioma: Inglês

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Iterative model reconstruction reduces calcified plaque volume in coronary CT angiography

Károlyi, Mihály ; Szilveszter, Bálint ; Kolossváry, Márton ; Takx, Richard A.P ; Celeng, Csilla ; Bartykowszki, Andrea ; Jermendy, Ádám L ; Panajotu, Alexisz ; Karády, Júlia ; Raaijmakers, Rolf ; Giepmans, Walter ; Merkely, Béla ; Maurovich-Horvat, Pál

Ireland: Elsevier B.V

Buscando em bases de dados remotas. Favor aguardar.