Dissertation > Excellent graduate degree dissertation topics show

Using Speckle Tracking Imaging to Evaluate Myocardial Strain and It’s Relationship with Early Phase Left Ventricular Remodeling in Patients with Acute Myocardial Infarction

Author: HuBin
Tutor: LiuXia
School: Ningxia Medical University
Course: Medical Imaging and Nuclear Medicine
Keywords: Speckle tracking imaging Strain Strain rate Acute myocardial infarction Early left ventricular remodeling
CLC: R542.22
Type: Master's thesis
Year: 2010
Downloads: 11
Quote: 0
Read: Download Dissertation

Abstract


The purpose of application of speckle tracking imaging (for speckle intelligent tracking imaging the STI) Evaluation of acute myocardial infarction in patients with percutaneous coronary intervention (percutaneous coronary intervention PCI) postoperative left ventricular myocardial deformation and its relationship early and left ventricular remodeling. Methods ① speckle tracking imaging techniques were used to measure the 20 patients with acute myocardial infarction patients after PCI, 20 patients with acute myocardial infarction delayed post-PCI patients and 30 normal controls apical two-chamber, three-chamber, four-chamber view of left ventricular myocardial segmental longitudinal peak systolic strain (regional peak systolic longitudinal strain S l ), segmental longitudinal peak systolic strain rate (regional peak systolic longitudinal strain rate, SR l ), vertical peak contraction of the total strain the lobal peak systolic longitudinal strain, the GS l ), longitudinal peak systolic strain rate (global peak systolic longitudinal strain rate, the GSR l ). ② detected three groups of left ventricular end-systolic volume (LVESV), end-diastolic volume (LVEDV), left ventricular ejection fraction (left ventricular ejection fraction, LVEF), analysis of patients with myocardial infarction group LVESV, LVEDV, LVEF and parameters such as longitudinal peak systolic total strain, strain rate correlation. Results ① normal control group myocardial longitudinal peak systolic strain from the strain of the basal segment of the apical segment gradually increase the longitudinal peak systolic strain rate is no way to base section to the variation of the apical segment. ② acute myocardial infarction patients with left ventricular longitudinal peak systolic total strain and total strain rates varying degrees lower than the normal control group (P lt; 0.05). ③ acute myocardial infarction patients with left ventricular myocardial segments longitudinal peak systolic strain, strain rate the different degrees lower than normal control group. Which delayed PCI group decreased more significantly (P lt; 0.05). The ④ acute myocardial infarction in patients with LVESV, LVEDV, LVEF between the normal control group were different, including acute myocardial infarction, delayed PCI group more with significant differences (P lt; 0.05); ⑤ longitudinal peak systolic total strain and total strain rate LVESV, LVEDV and LVEF related. ⑥ total longitudinal peak systolic strain ≥ -18 as the cutoff value, detection of left ventricular remodeling sensitivity and specificity were 83.3% and 80% total strain rate ≥ -1.05 S peak systolic longitudinal contraction - 1 as the cutoff value, the sensitivity and specificity for detection of left ventricular remodeling were 83.3% and 83.3%, respectively. Conclusion ① speckle tracking imaging quantitative assessment of myocardial infarction in patients with left ventricular deformation myocardial overall and local features. The ② speckle tracking imaging can be a sensitive method for detection of myocardial infarction, left ventricular early reconstruction of a. Left ventricular remodeling after diagnosis of myocardial infarction the ③ longitudinal peak systolic strain ≥ -16% sensitivity and specificity were 83.3% and 80%, respectively, to the longitudinal peak systolic strain rate ≥ -1.05 S -1 after the diagnosis of myocardial infarction left ventricular remodeling sensitivity and specificity were 83.3% and 83.3%, respectively. ④ myocardial infarction after coronary recanalization can effectively prevent or reduce left ventricular deformation and reconstruction, and early coronary recanalization of the left ventricular deformation and remodeling is more significant.

Related Dissertations

  1. The Combined Effect of Several Environmental Factor on Fertilization, Hatching and Juvenile Growth of Nile Tilapia,S917.4
  2. Construction of Engineering Strain Saccharomyces Cerevisiae Metabolizing Xylose,Q78
  3. Research of Breeding Aspergillus Oryzae with High Protease Activity and the Multi-strain Mixture Fermentation Conditions of Soy Sauce,TS264.21
  4. The Mutation Screening and the Production Optimization of Avermectin Producing Strain,TQ450.6
  5. Immobilization test strain qy37 processing the high salt nitrogenous wastewater research,X703
  6. The Construction of Genetic Engineering Strains of Cladosporium Cladosporioides MD2,Q93
  7. Research on Dynamics Performance and Optimal Design for Constrained Damping Vibration Isolator,TB535.1
  8. To Analyse the Related Risk Factors of AMI in Aged Patients with Coronary Heart Disease.,R542.22
  9. Evaluation of Common Carotid Artery Elasticity in Patients with Cerebral Infarction by Two-dimensional Speckle Tracking Imaging,R743.3
  10. Genetic Mechanism of the Gneissic Structure in Motianling and Yuanbaoshan Granitic Pluton in North Guangxi,P588.121
  11. Using the finite element method Ti-Si-N superhard nanocomposite mechanical properties of the surface,TB383.1
  12. The Application Technology of the Incremental Perturbation Method and the Research of Buckling Analysis with the Shanley Model,TB125
  13. Epidemiology Studies on Hemophilus Parasuis and Screening of the Vaccine Candidate Strains,S858.28
  14. Resistance to permanent deformation of asphalt pavement design equations of,U416.217
  15. Study on Breeding of Avilamycin Producing Strains and Conditions of Fermentation,TQ465
  16. Screening of Strain Producing Pectinase, Optimizing the Fermentation Conditions and Characteristics of Pectinase,TS255.1
  17. Fatigue Damage and Life Prediction of Concrete,O346.5
  18. Microbial fermentation production of Coenzyme Q_ (10),TQ925.9
  19. The Early Diagnostic Value of Speckle Tracking Imaging in Patients with Coronary Heart Disease,R541.4
  20. Effect of Paroxysmal Atrial Fibrillation and the Clinical Concomitant on Left Cardiac Chambers,R541.75
  21. Comparison of Left Atrial Function by Real-Time Three-Dimensional Echocardiography and Speckle Tracking Imaging in Patients Having Catheter Ablation for Atrial Fibrillation,R541.75

CLC: > Medicine, health > Internal Medicine > Heart, blood vessels ( circulatory ) disease > Heart disease > Myocardial diseases > Myocardial infarction
© 2012 www.DissertationTopic.Net  Mobile