Abstract
AIMS: Assessment of para-valvular aortic regurgitation remains challenging. Quantitative video-densitometry is an effective technique however overlap of the aorta and left ventricle (LV) limits feasibility. We aimed to develop and validate a method to determine an 'Overlap Free Projection' (OFP).
METHODS AND RESULTS: 65 computed tomography scans of patients referred for transcatheter aortic valve implantation were analysed using 3D reconstruction to evaluate the OFP. We observed that the relative position of the descending aorta to the LV and aortic root determines the OFP and developed a rule based on this data. 81 fluoroscopic cases were assessed for validation. The OFP was determined in a significantly greater proportion of cases that followed the rule compared to those that did not (98% vs. 45%, p<0.001).
CONCLUSIONS: The OFP rule is a straightforward method to reliably determine a patient-specific OFP for contrast aortography.
| Original language | English |
|---|---|
| Pages (from-to) | 1652-1654 |
| Journal | EuroIntervention |
| Volume | 13 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 20 Feb 2018 |
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How to plan an overlap-free projection on CTA or fluoroscopy to facilitate quantitative analysis of aortic regurgitation. / Teng, Justin; Nijenhuis, Vincent; Swaans, Martin; Yong, Gerald; Schultz, Carl.
In: EuroIntervention, Vol. 13, No. 14, 20.02.2018, p. 1652-1654.Research output: Contribution to journal › Article
TY - JOUR
T1 - How to plan an overlap-free projection on CTA or fluoroscopy to facilitate quantitative analysis of aortic regurgitation
AU - Teng, Justin
AU - Nijenhuis, Vincent
AU - Swaans, Martin
AU - Yong, Gerald
AU - Schultz, Carl
PY - 2018/2/20
Y1 - 2018/2/20
N2 - AIMS: Assessment of para-valvular aortic regurgitation remains challenging. Quantitative video-densitometry is an effective technique however overlap of the aorta and left ventricle (LV) limits feasibility. We aimed to develop and validate a method to determine an 'Overlap Free Projection' (OFP).METHODS AND RESULTS: 65 computed tomography scans of patients referred for transcatheter aortic valve implantation were analysed using 3D reconstruction to evaluate the OFP. We observed that the relative position of the descending aorta to the LV and aortic root determines the OFP and developed a rule based on this data. 81 fluoroscopic cases were assessed for validation. The OFP was determined in a significantly greater proportion of cases that followed the rule compared to those that did not (98% vs. 45%, p<0.001).CONCLUSIONS: The OFP rule is a straightforward method to reliably determine a patient-specific OFP for contrast aortography.
AB - AIMS: Assessment of para-valvular aortic regurgitation remains challenging. Quantitative video-densitometry is an effective technique however overlap of the aorta and left ventricle (LV) limits feasibility. We aimed to develop and validate a method to determine an 'Overlap Free Projection' (OFP).METHODS AND RESULTS: 65 computed tomography scans of patients referred for transcatheter aortic valve implantation were analysed using 3D reconstruction to evaluate the OFP. We observed that the relative position of the descending aorta to the LV and aortic root determines the OFP and developed a rule based on this data. 81 fluoroscopic cases were assessed for validation. The OFP was determined in a significantly greater proportion of cases that followed the rule compared to those that did not (98% vs. 45%, p<0.001).CONCLUSIONS: The OFP rule is a straightforward method to reliably determine a patient-specific OFP for contrast aortography.
KW - Journal Article
U2 - 10.4244/EIJ-D-17-00080
DO - 10.4244/EIJ-D-17-00080
M3 - Article
VL - 13
SP - 1652
EP - 1654
JO - EUROINTERVENTION : JOURNAL OF EUROPCR IN COLLABORATION WITH THE WORKING GROUP ON INTERVENTIONAL CARDIOLOGY OF THE EUROPEAN SOCIETY OF CARDIOLOGY
JF - EUROINTERVENTION : JOURNAL OF EUROPCR IN COLLABORATION WITH THE WORKING GROUP ON INTERVENTIONAL CARDIOLOGY OF THE EUROPEAN SOCIETY OF CARDIOLOGY
SN - 1774-024X
IS - 14
ER -