Beam-hardening correction for virtual monochromatic imaging of myocardial perfusion via fast-switching dual-kVp 64-slice computed tomography: - A pilot study using a human heart specimen -

Minoru Yamada; Masahiro Jinzaki; Sachio Kuribayashi; Nobuaki Imanishi; Kazuya Funato; Sadakazu Aiso

doi:10.1253/circj.CJ-12-0463

Beam-hardening correction for virtual monochromatic imaging of myocardial perfusion via fast-switching dual-kVp 64-slice computed tomography: - A pilot study using a human heart specimen -

Minoru Yamada, Masahiro Jinzaki, Sachio Kuribayashi, Nobuaki Imanishi, Kazuya Funato, Sadakazu Aiso

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Background: Investigate the effectiveness of beam-hardening (BH) correction using ECG-gated dual-kVp computed tomography (CT) for myocardial imaging. Methods and Results: A human heart specimen and artificial descending aorta were scanned using both dual-kVp and single 120-kVp modes. The myocardial CT values at the anterior and posterobasal walls were 89.4±6.2 and 87.1±6.9 HU (P=0.59) for the 69-keV images, and 88.3±5.9 and 49.9±13.5 HU (P=0.002) for the 120-kVp images, respectively. Conclusions: Fast-switching dual-kVp technology is feasible for the correction of CT value deficits induced by BH that mimics perfusion defects.

Original language	English
Pages (from-to)	1799-1801
Number of pages	3
Journal	Circulation Journal
Volume	76
Issue number	7
DOIs	https://doi.org/10.1253/circj.CJ-12-0463
Publication status	Published - 2012

Keywords

Beam-hardening
Dual-kVp
Myocardial perfusion imaging

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

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10.1253/circj.CJ-12-0463

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Beam-hardening correction for virtual monochromatic imaging of myocardial perfusion via fast-switching dual-kVp 64-slice computed tomography : - A pilot study using a human heart specimen -. / Yamada, Minoru; Jinzaki, Masahiro; Kuribayashi, Sachio et al.

In: Circulation Journal, Vol. 76, No. 7, 2012, p. 1799-1801.

Research output: Contribution to journal › Article › peer-review

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abstract = "Background: Investigate the effectiveness of beam-hardening (BH) correction using ECG-gated dual-kVp computed tomography (CT) for myocardial imaging. Methods and Results: A human heart specimen and artificial descending aorta were scanned using both dual-kVp and single 120-kVp modes. The myocardial CT values at the anterior and posterobasal walls were 89.4±6.2 and 87.1±6.9 HU (P=0.59) for the 69-keV images, and 88.3±5.9 and 49.9±13.5 HU (P=0.002) for the 120-kVp images, respectively. Conclusions: Fast-switching dual-kVp technology is feasible for the correction of CT value deficits induced by BH that mimics perfusion defects.",

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author = "Minoru Yamada and Masahiro Jinzaki and Sachio Kuribayashi and Nobuaki Imanishi and Kazuya Funato and Sadakazu Aiso",

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AU - Jinzaki, Masahiro

AU - Kuribayashi, Sachio

AU - Imanishi, Nobuaki

AU - Funato, Kazuya

AU - Aiso, Sadakazu

PY - 2012

Y1 - 2012

N2 - Background: Investigate the effectiveness of beam-hardening (BH) correction using ECG-gated dual-kVp computed tomography (CT) for myocardial imaging. Methods and Results: A human heart specimen and artificial descending aorta were scanned using both dual-kVp and single 120-kVp modes. The myocardial CT values at the anterior and posterobasal walls were 89.4±6.2 and 87.1±6.9 HU (P=0.59) for the 69-keV images, and 88.3±5.9 and 49.9±13.5 HU (P=0.002) for the 120-kVp images, respectively. Conclusions: Fast-switching dual-kVp technology is feasible for the correction of CT value deficits induced by BH that mimics perfusion defects.

AB - Background: Investigate the effectiveness of beam-hardening (BH) correction using ECG-gated dual-kVp computed tomography (CT) for myocardial imaging. Methods and Results: A human heart specimen and artificial descending aorta were scanned using both dual-kVp and single 120-kVp modes. The myocardial CT values at the anterior and posterobasal walls were 89.4±6.2 and 87.1±6.9 HU (P=0.59) for the 69-keV images, and 88.3±5.9 and 49.9±13.5 HU (P=0.002) for the 120-kVp images, respectively. Conclusions: Fast-switching dual-kVp technology is feasible for the correction of CT value deficits induced by BH that mimics perfusion defects.

KW - Beam-hardening

KW - Dual-kVp

KW - Myocardial perfusion imaging

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Beam-hardening correction for virtual monochromatic imaging of myocardial perfusion via fast-switching dual-kVp 64-slice computed tomography: - A pilot study using a human heart specimen -

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Keywords

ASJC Scopus subject areas

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