ライフサイエンスコーパス: mitral annulus

1 ng the left inferior pulmonary vein with the mitral annulus.

2 lary tips and leaflet edges from the dynamic mitral annulus.

3 r semirigid or flexible ring fixation of the mitral annulus.

4 e from the papillary muscles, fascicles, and mitral annulus.

5 lized to the tricuspid annulus, and 6 to the mitral annulus.

6 el by making multiple small incisions in the mitral annulus.

7 paque markers sewn equally spaced around the mitral annulus.

8 ociated (OR=1.4, P=0.02) with calcium in the mitral annulus.

9 olic wall thickening at the LV base near the mitral annulus.

10 h additional markers silhouetting the LV and mitral annulus.

11 radiopaque markers on the left ventricle and mitral annulus.

12 suture and radiopaque markers on the LV and mitral annulus.

13 d merging further anteriorly with the septal mitral annulus.

14 itral leaflet, posterior mitral leaflet, and mitral annulus.

15 one and externalized through the mid-lateral mitral annulus.

16 ; fibroelastoma, 1; caseous calcification of mitral annulus, 3; and thrombus, 3.

17 icrometry transducers were placed around the mitral annulus (6) and at the tips and bases of both pap

18 These mitral annulus abnormalities, together with auscultatory

19 trastimuli delivered at the inferoparaseptal mitral annulus advanced both the A and H electrograms in

20 grees, P=0.13) leaflet edges relative to the mitral annulus after valve closure did not change, but l

21 ting the left-sided pulmonary veins with the mitral annulus along the posterior base of the left atri

22 paque markers inserted: 7 along the anterior mitral annulus and 16 equally spaced on the AML.

23 cardia, 4 tachycardias were localized to the mitral annulus and 37 to the tricuspid annulus (includin

24 g the cardiac cycle, the angle alpha between mitral annulus and AL changed by +54.2+/-12.4 degrees; t

25 roof of left atrium, and left posteroseptal mitral annulus and coronary sinus ostium.

26 es immediate mitral regurgitation alters the mitral annulus and its spatial relationship with both pa

27 nuloplasty during acute IMR on motion of the mitral annulus and leaflets in an ovine model.

28 3D software, patient-specific models of the mitral annulus and leaflets were computed at mid- and en

29 combination of tissue Doppler imaging of the mitral annulus and mitral inflow velocity curves provide

30 tal-lateral direction) of the midpart of the mitral annulus and near the anterolateral region; 3) inc

31 It compresses the mitral annulus and reshapes the ventricle.

32 by +54.2+/-12.4 degrees; the angles between mitral annulus and S1 (beta1) changed by +25.7+/-14.6 de

33 changed by +25.7+/-14.6 degrees, and between mitral annulus and S2 (beta2) by +20.4+/-7.8 degrees.

34 ricle, 1 on each papillary tip, 8 around the mitral annulus, and 1 on each leaflet edge midpoint.

35 ker implantation in the left ventricle (LV), mitral annulus, and mitral leaflets.

36 2), papillary muscle tips, fibrous trigones, mitral annulus, and the tip of the anterior leaflet (AL)

37 ed radiopaque markers in the left ventricle, mitral annulus, anterior and posterior mitral leaflets,

38 tween the pulmonary veins posteriorly and/or mitral annulus anteriorly and the septum primum.

39 At the mitral annulus-aorta (MA-Ao) junction, the left atrium i

40 presence of multiple calcium deposits in the mitral annulus, aortic valve or aortic root appears to b

41 .2+/-0.3 versus 2.2+/-0.9, P=0.0001), as did mitral annulus area (817+/-146 versus 1100+/-161 mm(2),

42 The mitral annulus area (MAA) and the tenting area (TA) were

43 be reduced >50% had a smaller preprocedural mitral annulus area compared with patients with </=50% r

44 variate analysis, LV end-systolic volume and mitral annulus area most strongly predicted MR (r(2)=0.8

45 flet restriction angle (posterior leaflet to mitral annulus area) by 2-dimensional and 3-dimensional

46 R regurgitation fraction and vena contracta, mitral annulus area, and posterior leaflet restriction a

47 left ventricle and 2.5+/-0.12 mm toward the mitral annulus at end systole; the posterior papillary m

48 s the proximity of the coronary sinus to the mitral annulus, but is limited by anatomic variants and

49 nset of early (Ea) diastolic velocity of the mitral annulus by tissue Doppler (TD) in comparison with

50 Mitral annulus calcification (MAC) is a chronic, degener

51 We examined the hypothesis that mitral annulus calcification (MAC), aortic valve scleros

52 Mitral annulus calcification, AVS and ARC frequently coe

53 ively; P=0.036) and tended to have a smaller mitral annulus circumference (13.0+/-2.0 versus 14.8+/-4

54 e system (origin at the midpoint between the mitral annulus commissures [anterolateral and posteromed

55 The saddle shape of the mitral annulus confers a mechanical advantage to the lea

56 the right pulmonary vein (PV) in 3 patients, mitral annulus, crista terminalis, tricuspid annulus, an

57 ail leaflet (p = 0.0003), and progression of mitral annulus diameter (p = 0.0001).

58 MR regurgitation fraction, 24.2+/-2.9%) and mitral annulus dilatation (P<0.01).

59 ynamics were also markedly abnormal with the mitral annulus dilating rapidly in early systole in resp

60 End-systolic mitral annulus dimensions, components of papillary muscl

61 Mitral annulus disjunction (median: 4.8 versus 1.8 mm; P

62 A linear correlation was found between mitral annulus disjunction and curling (R=0.85).

63 tology of the mitral annulus showed a longer mitral annulus disjunction in 50 sudden death patients w

64 Mitral annulus disjunction is a constant feature of arrh

65 ly diastolic filling (E) and velocity of the mitral annulus due to long-axis lengthening (E(M)) are r

66 i.e., decreased longitudinal velocity of the mitral annulus during early diastole and decreased propa

67 issue Doppler imaging velocity of the medial mitral annulus during passive filling (E/e') ratio >15.

68 issue Doppler imaging velocity of the medial mitral annulus during passive filling (E/e') ratio in di

69 issue Doppler imaging velocity of the medial mitral annulus during passive filling (E/e') ratio, the

70 The early diastolic velocity of the mitral annulus (E') is reduced in patients with diastoli

71 Diastolic velocity of the septal mitral annulus (E(m)) did not change after PTE (8.0 +/-

72 velocity to early diastolic velocity of the mitral annulus (E/E') showed a better correlation with M

73 lling [E] to early diastolic velocity of the mitral annulus [E']; P = .003), impaired pulmonary funct

74 whether the early diastolic velocity of the mitral annulus (Ea) obtained with Doppler tissue imaging

75 s most useful in patients with ratio of E to mitral annulus early diastolic velocity (E/Ea ratio) 8 t

76 ablation at common non-PV AF trigger sites (mitral annulus, fossa ovalis, eustachian ridge, crista t

77 raphy provides insights into normal, dynamic mitral annulus function with early-systolic area contrac

78 esion was made from the septum primum to the mitral annulus (group 2).

79 The saddle shape of the mitral annulus imparts a more subtle form of leaflet cur

80 e transmitral inflow velocity profile at the mitral annulus in four groups from the Strong Heart Stud

81 al diastolic velocities at five sites on the mitral annulus included peak early myocardial tissue vel

82 p = ns), whereas the velocity of the lateral mitral annulus increased (9.3 +/- 3.2 cm/s to 11.8 +/- 3

83 Mitral annulus is a complex structure of poorly understo

84 Caseous calcification of mitral annulus is rather rare echocardiographic finding

85 t the base of the LV, in the region near the mitral annulus, is unclear.

86 markers on the left ventricle, 8 around the mitral annulus (MA) and 1 on each papillary muscle (PM)

87 the in vivo anatomical relationships between mitral annulus (MA) and coronary sinus (CS) as well as C

88 identify the hemodynamic determinants of the mitral annulus (MA) diastolic velocities by tissue Doppl

89 neous pattern of systolic contraction of the mitral annulus (MA) in normovolemic dogs: the posterior

90 raphy data were postprocessed to reconstruct mitral annulus (MA) peak systolic velocity and displacem

91 proposed that D-shaped versus saddle-shaped mitral annulus (MA) segmentation is more biomechanically

92 aque markers on the left ventricle, 8 on the mitral annulus (MA), 1 on each papillary muscle (PM) tip

93 ep had 8 radio-opaque markers affixed to the mitral annulus (MA), 4 markers sewn on the central merid

94 Radiopaque markers were placed on the LV, mitral annulus (MA), and leaflets in 13 sheep.

95 mplantation of radiopaque markers on the LV, mitral annulus (MA), each leaflet edge, and each PM tip.

96 nowledge of the geometry and dynamics of the mitral annulus (MA), papillary muscle (PM), and the chor

97 antation of radiopaque markers on the LV and mitral annulus (MA).

98 r 16 incisions were made along the posterior mitral annulus of a pressurized left ventricle.

99 d MR- groups, the MR+ group had more dilated mitral annulus (P<0.0001), a reduced annular height to c

100 e from papillary muscle tips to the anterior mitral annulus (P<0.0001).

101 Radiopaque markers were sutured to the mitral annulus, papillary muscle tips, and leaflet edges

102 radiopaque marker placement (left ventricle, mitral annulus, papillary muscles [PMs], and leaflets).

103 e of block between the septum primum and the mitral annulus proved to be effective for cure of tachyc

104 The mitral annulus provides a left atrial input to the human

105 Tissue Doppler imaging of the mitral annulus provides useful information about myocard

106 posterior leaflet and posterior part of the mitral annulus, reducing posterior leaflet mobility.

107 et displacement >2 versus </=2 mm beyond the mitral annulus, respectively.

108 ed the hypothesis that rigid fixation of the mitral annulus results in significant regional systolic

109 /-146 versus 1100+/-161 mm(2), P=0.0001) and mitral annulus septal-lateral diameter (28.2+/-3.5 versu

110 Histology of the mitral annulus showed a longer mitral annulus disjunctio

111 opportunity to completely image and quantify mitral annulus size and motion.

112 and determined by progression of lesions or mitral annulus size.

113 red to be different from the "saddle-shaped" mitral annulus, suggesting an annuloplasty for TR differ

114 a decrease in infarcted papillary muscle-to-mitral annulus tethering distance (27+/-4 to 24+/-4 mm,

115 nt to the left ventricular outflow tract and mitral annulus that enhanced leaflet coaptation.

116 evalence of aortic valve, aortic valve ring, mitral annulus, thoracic aorta, and coronary artery calc

117 arkers into the LV epicardium and around the mitral annulus to allow calculation of LV volume and reg

118 t midsystole, the M(SL) was concave near the mitral annulus, turned from concave to convex across the

119 x 2-mm incisions in the atrial aspect of the mitral annulus using a cardioport video-assisted imaging

120 ardial performance index, peak Emax and Amax mitral annulus velocities by Doppler tissue imaging, and

121 tolic flow velocity (A), and early diastolic mitral annulus velocity (E') were measured, and E/A and

122 volume, pre-A-wave pressure, early diastolic mitral annulus velocity (Ea) by tissue Doppler, and tau.

123 n the region of the base of the LV (near the mitral annulus), was not altered with either semirigid o

124 cross the left ventricular outflow tract and mitral annulus were calculated by pulsed-Doppler techniq

125 low, pulmonary venous inflow, and TDI of the mitral annulus were obtained.

126 A "saddle-shaped" mitral annulus with an optimal ratio between annular hei

127 5 mm) localized in the posterior part of the mitral annulus, with markedly calcified margins, and no