Hybrid image visualization tool for 3D integration of CT coronary anatomy and quantitative myocardial perfusion PET

Martina Marinelli, Vincenzo Positano, Stephan G. Nekolla, Paolo Marcheschi, Giancarlo Todiere, Natalia Esposito, Stefano Puzzuoli, Giuseppe A. L'Abbate, Paolo Marraccini, Danilo Neglia

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Purpose: Multimodal cardiac imaging by CTA and quantitative PET enables acquisition of patient-specific coronary anatomy and absolute myocardial perfusion at rest and during stress. In the clinical setting, integration of this information is performed visually or using coronary arteries distribution models. We developed a new tool for CTA and quantitative PET integrated 3D visualization, exploiting XML and DICOM clinical standards. Methods: The hybrid image tool (HIT) developed in the present study included four main modules: (1) volumetric registration for spatial matching of CTA and PET data sets, (2) an interface to PET quantitative analysis software, (3) a derived DICOM generator able to build DICOM data set from quantitative polar maps, and (4) a 3D visualization tool of integrated anatomical and quantitative flow information. The four modules incorporated in the HIT tool communicate by defined standard XML files: XML-transformation and XML MIST standards. Results: The HIT tool implements a 3D representation of CTA showing real coronary anatomy fused to PET-derived quantitative myocardial blood flow distribution. The technique was validated on 16 data sets from EVINCI study population. The validation of the method confirmed the high matching between "original" and derived data sets as well as the accuracy of the registration procedure. Conclusions: Three-dimensional integration of patient- specific coronary artery anatomy provided by CTA and quantitative myocardial blood flow obtained from PET imaging can improve cardiac disease assessment. The HIT tool introduced in this paper may represent a significant advancement in the clinical use of this multimodal approach.

Original languageEnglish
Pages (from-to)221-232
Number of pages12
JournalInternational Journal of Computer Assisted Radiology and Surgery
Issue number2
StatePublished - Mar 2013


  • 3D visualization
  • CAD
  • Hybrid imaging
  • Myocardial flow reserve
  • XML


Dive into the research topics of 'Hybrid image visualization tool for 3D integration of CT coronary anatomy and quantitative myocardial perfusion PET'. Together they form a unique fingerprint.

Cite this