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Three-dimensional quantification and visualization of aortic calcification by multidetector-row computed tomography: a simple approach using a volume-rendering method.
Mori, Shumpei; Takaya, Tomofumi; Kinugasa, Mitsuo; Ito, Tatsuro; Takamine, Sachiko; Fujiwara, Sei; Nishii, Tatsuya; Kono, Atsushi K; Inoue, Takeshi; Satomi-Kobayashi, Seimi; Rikitake, Yoshiyuki; Okita, Yutaka; Hirata, Ken-ichi.
Affiliation
  • Mori S; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan. Electronic address: shumpei_8@hotmail.com.
  • Takaya T; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Kinugasa M; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Ito T; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Takamine S; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Fujiwara S; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Nishii T; Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Kono AK; Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Inoue T; Division of Cardiovascular Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Satomi-Kobayashi S; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Rikitake Y; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan; Division of Signal Transduction, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Okita Y; Division of Cardiovascular Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
  • Hirata K; Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
Atherosclerosis ; 239(2): 622-8, 2015 Apr.
Article in En | MEDLINE | ID: mdl-25554696
OBJECTIVE: Three-dimensional (3-D) visualization and quantification of vascular calcification (VC) are important to accelerate the multidisciplinary investigation of VC. Agatston scoring is the standard approach for evaluating coronary artery calcification. However, regarding aortic calcification (AC), quantification methods appear to vary among studies. The aim of this study was to introduce a simple technique of simultaneous quantification and 3-D visualization of AC and provide validation data. METHODS: The main study comprised of 126 patients who underwent the thoracoabdominal plain computed tomography scan as preoperative general evaluation. AC was quantified using a volume-rendering (VR) method (VR AC volume) by extracting the volume with a density ≥130 HU within the total aorta. The concordance and reproducibility of the VR AC volume were validated in comparison with the conventional slice-by-slice voxel-based AC quantification (volumetric AC score) using the Agatston scoring software. RESULTS: Excellent concordance between the VR AC volume and volumetric AC score was confirmed (Spearman correlation coefficient = 0.9997, mean difference = -0.05 ± 0.23 mL, p <0.0001). Excellent intraobserver and interobserver reliabilities were demonstrated using the Bland-Altman analysis as the mean intraobserver difference was 0.00 mL (p = 0.9863) and the mean interobserver difference was -0.01 mL (p = 0.6612). CONCLUSION: The VR method was validated to be feasible. This simple approach could overcome the limitation of the current method based on slice-by-slice pixel or voxel summation, which lacks 3-D visual information. Accordingly, this approach would be promising for accelerating the investigation of VC.
Subject(s)
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Aortic Diseases / Aortography / Radiographic Image Interpretation, Computer-Assisted / Imaging, Three-Dimensional / Vascular Calcification / Multidetector Computed Tomography Type of study: Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Aged / Female / Humans / Male / Middle aged Language: En Journal: Atherosclerosis Year: 2015 Document type: Article Country of publication: Ireland

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Aortic Diseases / Aortography / Radiographic Image Interpretation, Computer-Assisted / Imaging, Three-Dimensional / Vascular Calcification / Multidetector Computed Tomography Type of study: Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Aged / Female / Humans / Male / Middle aged Language: En Journal: Atherosclerosis Year: 2015 Document type: Article Country of publication: Ireland