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 journalArticle

25 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 languageEnglish
Pages (from-to)1799-1801
Number of pages3
JournalCirculation Journal
Volume76
Issue number7
DOIs
Publication statusPublished - 2012 Jul 5
Externally publishedYes

Keywords

  • Beam-hardening
  • Dual-kVp
  • Myocardial perfusion imaging

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

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; Imanishi, Nobuaki; Funato, Kazuya; Aiso, Sadakazu.

In: Circulation Journal, Vol. 76, No. 7, 05.07.2012, p. 1799-1801.

Research output: Contribution to journalArticle

@article{bf2e0aa9d3a34a0e9c3825239cfcf30e,
title = "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 -",
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.",
keywords = "Beam-hardening, Dual-kVp, Myocardial perfusion imaging",
author = "Minoru Yamada and Masahiro Jinzaki and Sachio Kuribayashi and Nobuaki Imanishi and Kazuya Funato and Sadakazu Aiso",
year = "2012",
month = "7",
day = "5",
doi = "10.1253/circj.CJ-12-0463",
language = "English",
volume = "76",
pages = "1799--1801",
journal = "Circulation Journal",
issn = "1346-9843",
publisher = "Japanese Circulation Society",
number = "7",

}

TY - JOUR

T1 - Beam-hardening correction for virtual monochromatic imaging of myocardial perfusion via fast-switching dual-kVp 64-slice computed tomography

T2 - - A pilot study using a human heart specimen -

AU - Yamada, Minoru

AU - Jinzaki, Masahiro

AU - Kuribayashi, Sachio

AU - Imanishi, Nobuaki

AU - Funato, Kazuya

AU - Aiso, Sadakazu

PY - 2012/7/5

Y1 - 2012/7/5

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

UR - http://www.scopus.com/inward/record.url?scp=84863226970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863226970&partnerID=8YFLogxK

U2 - 10.1253/circj.CJ-12-0463

DO - 10.1253/circj.CJ-12-0463

M3 - Article

C2 - 22664799

AN - SCOPUS:84863226970

VL - 76

SP - 1799

EP - 1801

JO - Circulation Journal

JF - Circulation Journal

SN - 1346-9843

IS - 7

ER -