case_images: PMC11772999_01
case_images: Pre- and post-procedural images of Case 1. (A) Pre-procedural computed tomography: a, sinus of Valsalva level; b, annular level; c, left ventricular outflow tract level. (B) Aortography after transcatheter aortic valve replacement. (C) Post-procedural computed tomography.
case_images: ytaf007f1.jpg
case_images: PMC11772999_01_ytaf007f1.jpg
case_images: ytaf007-F1
case_images: Multislice computed tomography (MSCT) showed that the annulus had an area of 405.1 mm2, a mean diameter of 23.6 mm, left coronary artery (LCA) height of 15.0 mm, right coronary artery (RCA) height of 16.0 mm, bulky calcification on all three leaflets, severe LVOTC [maximum diameter: 11.4 mm, calcium volume: 126 mm3 using 850 Hounsfield units (HU)] below the left coronary cusp (LCC) (Figure 1), and membranous septum (MS) length of 1.6 mm.
case_images: PMC11772999_02
case_images: Pre- and post-procedural images of Case 2. (A) Pre-procedural computed tomography: a, sinus of Valsalva level; b, 4 mm above the annular level; c, left ventricular outflow tract level. (B) Aortography after transcatheter aortic valve replacement. (C) Post-procedural computed tomography.
case_images: ytaf007f2.jpg
case_images: PMC11772999_02_ytaf007f2.jpg
case_images: ytaf007-F2
case_images: The annulus had an area of 472.6 mm2, a mean diameter of 24.9 mm (diameter of the intra-raphe: 21.1 mm x 25.7 mm), an LCA height of 16.7 mm, an RCA height of 15.9 mm, bulky calcification on both leaflets, severe LVOTC (maximum diameter: 12.1 mm, calcium volume: 68 mm3 using 850 HU) below the side of the LCA (Figure 2), and an MS length of 1.3 mm.
case_images: PMC11772999_03
case_images: Pre- and post-procedural images of Case 3. (A) Pre-procedural computed tomography: a, sinus of Valsalva level; b, annular level; c, left ventricular outflow tract level. (B) Aortography after transcatheter aortic valve replacement.
case_images: ytaf007f3.jpg
case_images: PMC11772999_03_ytaf007f3.jpg
case_images: ytaf007-F3
case_images: Multislice computed tomography showed that the annulus had an area of 516.6 mm2, a mean diameter of 26.5 mm, an LCA height of 17.6 mm, an RCA height of 19.6 mm, calcification on all three leaflets, severe LVOTC (maximum diameter: 12.1 mm, calcium volume: 21 mm3 using 850 HU) below the LCC (Figure 3), and an MS length of 3.0 mm.
case_images: PMC11772999_04
case_images: Pre- and post-procedural images of Case 4. (A) Pre-procedural computed tomography: a, sinus of Valsalva level; b, annular level; c, left ventricular outflow tract level. (B) Aortography after transcatheter aortic valve replacement. (C) Post-procedural computed tomography.
case_images: ytaf007f4.jpg
case_images: PMC11772999_04_ytaf007f4.jpg
case_images: ytaf007-F4
case_images: Multislice computed tomography showed that the annulus had an area of 425.2 mm2, a mean diameter of 24.9 mm, a perimeter of 77.0 mm, an LCA height of 15.0 mm, an RCA height of 16.0 mm, bulky calcification on each of the three leaflets, severe LVOTC (maximum diameter: 10.5 mm, calcium volume: 58 mm3 using 850 HU) below the LCC (Figure 4), and an MS length of 3.7 mm.