Measuring of Abdominal Aortic Aneurysm with Three-Dimensional Computed Tomography Reconstruction before Endovascular Aortic Aneurysm Repair
Vascular Specialist International
;
: 27-32, 2017.
Article
Dans Anglais
| WPRIM
| ID: wpr-117388
ABSTRACT
PURPOSE:
Conventional computed tomography (CT) is the gold standard method for case planning for endovascular aortic aneurysm repair (EVAR). However, aortography with a marking catheter is needed for measuring the actual length of an aneurysm. With advances in imaging technology, a 3-dimensional (3D) workstation can obviate the need for the aortography. The objective of this study was to determine whether a 3D workstation could obviate the need for aortography for EVAR. MATERIALS ANDMETHODS:
One vascular surgeon and 1 interventional radiologist retrospectively assessed axial CT scans and reformatted the 3D CT scans by using the iNtuition workstation (TeraRecon Inc., San Mateo, CA, USA) for 25 patients who underwent EVAR. Four measurements of diameter and length were obtained from each modality. The actual length of an aneurysm for the proper graft was decided by 2 observers by reviewing the aortography with a marking catheter.RESULTS:
The measurements from the 2 modalities were reproducible with intraobserver correlation coefficients of 0.89 to 1.0 for conventional CT and 0.98 to 1.0 for 3D workstation. Interobserver correlation coefficients were 0.29 to 0.95 for conventional CT and 0.85 to 0.99 for the 3D workstation. The length of the aneurysm for proper main graft coincided in 18 and 14 patients according to the conventional CT scan and in 21 and 18 patients according to the 3D workstation, respectively.CONCLUSION:
The interobserver agreement in planning EVAR was significantly better with the iNtuition 3D workstation. But aortography with a marking catheter may still be needed for selecting the proper graft.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anévrysme de l'aorte
/
Aortographie
/
Tomodensitométrie
/
Études rétrospectives
/
Anévrysme de l'aorte abdominale
/
Intuition
/
Transplants
/
Procédures endovasculaires
/
Cathéters
/
Anévrysme
Type d'étude:
Étude observationnelle
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Vascular Specialist International
Année:
2017
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS