CT Chest With IV Contrast There is no relevant literature to support the use of chest CT with intravenous (IV) contrast for annulus sizing and assessment of aortic root. CT Chest Without and With IV Contrast There is no literature in support of chest CT without and with IV contrast for annular sizing and assessment of aortic root. CT Chest Without IV Contrast There is no literature in support of chest CT without IV contrast for annular sizing and assessment of aortic root. Aortic calcification can; however, be assessed on CT chest without IV contrast. Harbaoui et al [38] evaluated ascending aortic calcifications in 189 patients undergoing TAVR and noted ascending aortic calcification (tertile 3 versus tertile 1) appeared predictive of heart failure (hazard ratio [HR]: 2.29; 95% confidence interval [CI], 1.12- 4.66; P = . 023). Transcatheter Aortic Valve Replacement (14% versus 35%; P = . 003). In a prospective study of 266 patients, 133 consecutive patients underwent TAVR with valve prosthesis size recommendation based on a CTA sizing algorithm and were compared with another cohort of 133 consecutive patients who underwent TAVR with valve prosthesis size recommendation based on a combination of echocardiogram measurements and angiographic images. The authors demonstrated a significant reduction in the incidence of paravalvular leak of 5.3% (7/133) in the CT group and 12.8% (17/133) in the control group (P = . 032) as a primary endpoint and aortic annulus rupture, and they demonstrated a significant reduction in in-hospital deaths of 3.8% (5/133) in the CTA group and 11.3% (15/133) in the control group (P = . 02) as a secondary endpoint [15]. CTA Chest With IV Contrast There is no literature to support the use of CTA chest with IV contrast for the assessment of the aortic root; however, in absence of motion artifacts, the annulus can be evaluated for size, calcifications, coronary ostial heights, and sinus of Valsalva diameters.
Preprocedural Planning for Transcatheter Aortic Valve Replacement. CT Chest With IV Contrast There is no relevant literature to support the use of chest CT with intravenous (IV) contrast for annulus sizing and assessment of aortic root. CT Chest Without and With IV Contrast There is no literature in support of chest CT without and with IV contrast for annular sizing and assessment of aortic root. CT Chest Without IV Contrast There is no literature in support of chest CT without IV contrast for annular sizing and assessment of aortic root. Aortic calcification can; however, be assessed on CT chest without IV contrast. Harbaoui et al [38] evaluated ascending aortic calcifications in 189 patients undergoing TAVR and noted ascending aortic calcification (tertile 3 versus tertile 1) appeared predictive of heart failure (hazard ratio [HR]: 2.29; 95% confidence interval [CI], 1.12- 4.66; P = . 023). Transcatheter Aortic Valve Replacement (14% versus 35%; P = . 003). In a prospective study of 266 patients, 133 consecutive patients underwent TAVR with valve prosthesis size recommendation based on a CTA sizing algorithm and were compared with another cohort of 133 consecutive patients who underwent TAVR with valve prosthesis size recommendation based on a combination of echocardiogram measurements and angiographic images. The authors demonstrated a significant reduction in the incidence of paravalvular leak of 5.3% (7/133) in the CT group and 12.8% (17/133) in the control group (P = . 032) as a primary endpoint and aortic annulus rupture, and they demonstrated a significant reduction in in-hospital deaths of 3.8% (5/133) in the CTA group and 11.3% (15/133) in the control group (P = . 02) as a secondary endpoint [15]. CTA Chest With IV Contrast There is no literature to support the use of CTA chest with IV contrast for the assessment of the aortic root; however, in absence of motion artifacts, the annulus can be evaluated for size, calcifications, coronary ostial heights, and sinus of Valsalva diameters.