Dissertation > Excellent graduate degree dissertation topics show

Pulmonary Embolism Diagnosis Through Monochromatic Images of Gemstone Spectral Imaging and Iodine Content of Perfusion Defects

Author: ZhangZuoZuo
Tutor: ChuJianGuo
School: Dalian Medical University
Course: Medical Imaging and Nuclear Medicine
Keywords: spectral CT imaging pulmonary embolism perfusion defects iodine content
CLC: R816.41
Type: Master's thesis
Year: 2013
Downloads: 28
Quote: 0
Read: Download Dissertation

Abstract


Objective: To assess the diagnostic value of detecting pulmonary embolism throughmonochromatic images of Gemstone Spectral Imaging and iodine content of perfusiondefects.Methods: Collected17patients who underwent CT angiography with spectral imagingmode and were diagnosed with pulmonary embolism. Images were reconstructed bytwo modes: mixed-energy mode, and70KeV mono-energy mode. Analyzed the imagesby using Gemstone Spectral Imaging Viewer. Separately recorded the presence andlocalization of the two modes of pulmonary embolism. Measured iodine content of theperfusion defects and the adjacent or contralateral normal perfusion district.Simultaneously collected20patients who underwent CT angiography with GE16rowspiral CT, and were diagnosed with pulmonary embolism, analyzed the images byaccompanied workspace, recorded the presence and localization of pulmonaryembolism.Results: The17patients who underwent CT angiography with spectral imaging modeshowed that:70KeV mono-energy mode images showed a total of102clots with trunk(n=9), lobar (n=15), segmental (n=57) or sub-segmental (n=21) distribution;mix-energy mode showed a total of83clots with trunk (n=9), lobar (n=16), segmental(n=37) or sub-segmental (n=21) distribution.20patients underwent GE16row spiralCT showed a total of103clots with trunk (n=7), lobar (n=16), segmental (n=63) orsub-segmental (n=17) distribution. There was significant difference (p＜0.05) in thesegmental clots between the two modes of spectral CT. Iodine-based materialdecomposition images showed that: iodine content between normal lung parenchyma(17.350±6.906) and perfusion defects (5.217±7.425) was significant difference(p=0.000). Conclusion: Compared with mix-energy mode images,70KeV mono-energy modeimages improves the detection of segmental clots. Iodine-based materialdecomposition images show perfusion defects clearly, perfusion defect and quantitativeanalysis of iodine content contribute to the detection of micro-emboli of pulmonaryembolism.

Related Dissertations

  1. Clinical Application of Inferior Vena Cava Filter in Preventing Pulmonary Embolism and Investigation for Choosing Types of Inferior Vena Cava Filter,R563.5
  2. The Feasibility Study of the Thrombolysis Theraphy in CPR of the Acute Pulmonary Embolism,R563.5
  3. The Diagnostic Research of CT Pulmonary Angiography for Right Ventricular Dysfunction in Acute Pulmonary Embolism,R541.6
  4. Analysis of 34 Cases of Pulmonary Embolism with Pleural Effusions,R563.5
  5. Clinical Comparison of the Elderly and Non-elderly with Acute Pulmonary Embolism,R563.5
  6. Dual-energy CT pulmonary perfusion imaging evaluation of the feasibility study of acute pulmonary embolism,R563.5
  7. Clinical Value of Inferior Vena Caval Filter Insertion under CDFI Guidance Through Right Internal Jugular Vein,R445.1
  8. Folic acid , B vitamins on homocysteine ??-related pulmonary embolism intervention study,R563.5
  9. Correlation of Hyperhomocysteimemia and Pulmonary Embolism with Empirical Study,R563.5
  10. The Xuebijing study the protective effect of acute pulmonary embolism,R543
  11. The Interventional Therapies for Acute Massive Pulmonary Embolism,R563.5
  12. An Animal Model of Acute Submassive Pulmonary Embolism: Its Establishment and Interventional Treatment with Local Thrombolysis,R-332
  13. Changes of Hepatocyte Growth Factor in Rat After Acut Pulmonary Emblism,R563.5
  14. Clinical Features and Prognosis Analysis in 513 Patients of Pulmonary Thromboembolism,R563.5
  15. The Study of Diagnosis Techniques of Pulmonary Embolism,R563.5
  16. Assessment on Severity in Patients of Acute Pulmonary Embolism with CT Pulmonary Artery Obstruction Index,R563.5
  17. Application of Dual Energy Pulmonary Angiography with Dual-source CT in Pulmonary Embolism,R563.5
  18. Preventing and Curing of Post-operational Acute Pulmonary Embolism,R619
  19. D-Dimer in Acute Pulmonary Embolism Early Diagnosis and Early Treatment of the Value,R563.5
  20. Diagnosis Value of Multislice Spiral CT Pulmonary Angiography in Pulmonary Embolism,R816.4
  21. Clinical Feasibility Study of Recyclable/Removable Drug-Coated Inferior Vena Cava Filter,R563.5

CLC: > Medicine, health > Of Medical > Radiation Medicine > Each location and course of disease X - ray diagnosis and therapy > Chest and respiratory system > The lungs
© 2012 www.DissertationTopic.Net  Mobile