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Computed Tomography Imaging in 2012,  An Issue of Cardiology Clinics - E-Book

Computed Tomography Imaging in 2012, An Issue of Cardiology Clinics - E-Book

Jagat Narula | Stephan Achenbach | Takeshi Kondo

(2012)

Additional Information

Book Details

Abstract

Cardiac CT obtains information about coronary arteries, great arteries and veins, and heart valves.  It shows the location and extent of calcified plaque in the coronary arteries and helps detect coronary artery disease at an early stage, which neither traditional imaging techniques nor cardiac testing  can do. Over the last decade technologic advances in CT angiography have been made at a rapid rate, and the new applications and refinements of existing technology continue to be made.  This issue will help practicing cardiologists to keep up with the latest technology in this important and swiftly moving field.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Cardiology Clinics i
Copyright Page ii
Table of Contents vii
Contributors iii
Cardiology Clinics x
Foreword: Update on Cardiac CT xi
Cardiac CT Imaging: Precocious Maturity? xiii
Chapter 1. Technical Advances in Cardiac CT 1
COMPUTED TOMOGRAPHY HARDWARE 1
SOFTWARE 6
FUTURE DEVELOPMENTS 6
REFERENCES 7
Chapter 2. Minimizing Radiation Dose for Coronary CT Angiography 9
IONIZING RADIATION BACKGROUND 9
CURRENT STRATEGIES TO REDUCE RADIATION DOSE 11
LIMITATIONS 15
SUMMARY 15
REFERENCES 15
Chapter 3. Coronary Artery Calcification and Coronary Atherosclerotic Disease 19
HISTORICAL PERSPECTIVE 19
PATHOPHYSIOLOGY OF CORONARY ARTERY CALCIUM 20
CORONARY ARTERY CALCIUM AND RELATION WITH AGE, GENDER, AND RACE 21
DISTRIBUTION OF CORONARY ARTERY CALCIUM 23
RELATION OF CORONARY ARTERY CALCIUM WITH VALVULAR CALCIFICATION 23
RELATION OF CORONARY ARTERY CALCIUM WITH AORTIC CALCIFICATION 25
CORONARY ARTERY CALCIUM, CONVENTIONAL CARDIOVASCULAR RISK FACTORS, AND THE METABOLIC SYNDROME 25
CORONARY ARTERY CALCIUM COMPARED WITH CONVENTIONAL ANGIOGRAPHY 27
RELATION OF CORONARY ARTERY CALCIUM WITH OTHER TESTS FOR CORONARY ARTERY DISEASE 32
PROGNOSIS OF CORONARY ARTERY CALCIUM SCORE: RELATION TO CARDIOVASCULAR EVENTS AND MORTALITY 33
GUIDELINES AND RECOMMENDATIONS FOR CORONARY CALCIUM SCANNING 33
HYPOTHETICAL COST MODELS OF CORONARY ARTERY CALCIUM SCORING: THE EMERGENCY ROOM AND OUTPATIENT SETTING 40
REFERENCES 41
Chapter 4. Coronary Artery Calcium Testing: Dos and Don’ts 49
DOS 50
DON’TS 52
REFERENCES 53
Chapter 5. Identifying and Redefining Stenosis by CT Angiography 57
DIAGNOSTIC EVALUATION FOR HIGH-GRADE CORONARY STENOSIS 58
DIAGNOSTIC PERFORMANCE OF CCTA FOR ADDITIONAL CAD MEASURES BEYOND STENOSIS 59
INCREMENTAL PROGNOSTIC VALUE OF CCTA 60
COMPARATIVE PROGNOSTIC VALUE OF CCTA AND STRESS TESTING 61
PROGNOSIS AND PLAQUE COMPOSITION 62
PROGNOSIS AND VENTRICULAR FUNCTION 62
FUTURE DIRECTIONS 63
SUMMARY 64
REFERENCES 64
Chapter 6. Evaluation of Plaque Morphology by Coronary CT Angiography 69
DIAGNOSIS OF THE VULNERABLE PLAQUE 69
CT-VERIFIED VULNERABLE PLAQUE 70
SPATIAL DISTRIBUTION OF CT-VERIFIED VULNERABLE PLAQUE AND THE RELATIONSHIP WITH SIGNIFICANT STENOSIS 70
THE RELATIONSHIP WITH CALCIFICATION IN CT-VERIFIED VULNERABLE PLAQUE 71
THE RELATIONSHIP BETWEEN CT-VERIFIED VULNERABLE PLAQUE AND THE FRS 71
PLANNING CORONARY INTERVENTION 73
LIMITATION AND FUTURE PERSPECTIVE FOR ASSESSMENT OF PLAQUE MORPHOLOGY IN CORONARY CTA 73
REFERENCES 74
Chapter 7. Prognostic Value of Coronary CT Angiography 77
PROGNOSTIC VALUE OF CORONARY CTA IN SYMPTOMATIC PATIENTS 78
PROGNOSTIC VALUE OF CORONARY CTA IN UNIQUE POPULATIONS 85
PROGNOSTIC IMPLICATIONS OF PLAQUE MORPHOLOGY 85
CORONARY CTA AND PROGNOSIS IN ASYMPTOMATIC PATIENTS? 86
SUMMARY 87
REFERENCES 87
Chapter 8. Subtraction Coronary CT Angiography for Calcified Lesions 93
CT IMAGING METHODS 94
IMAGE ACQUISITION METHODS USED IN SUBTRACTION CORONARY CT 94
SUBTRACTION METHOD 95
IMAGE ANALYSIS 95
USEFULNESS OF THE CORONARY CALCIUM SCORE IN DECIDING WHETHER CONVENTIONAL CORONARY CT SHOULD BE PERFORMED 96
A CASE REPORT 96
PRELIMINARY RESULTS FOR SUBTRACTION CORONARY CT 98
USEFULNESS OF SUBTRACTION CORONARY CT FOR THE ASSESSMENT OF CORONARY ARTERY STENTS 98
RADIATION DOSE IN SUBTRACTION CORONARY CT 99
MISREGISTRATION ARTIFACTS 100
FUTURE PROSPECTS 100
REFERENCES 101
Chapter 9. CT Detection of Pulmonary Embolism and Aortic Dissection 103
AORTIC DISSECTION 103
PULMONARY EMBOLISM 108
CHEST PAIN CTA 112
SUMMARY 113
REFERENCES 113
Chapter 10. Cardiac CT in the Emergency Department 117
DEFINITION OF ACS 117
PATHOPHYSIOLOGY OF ACS 117
CURRENT DIAGNOSTIC PATHWAYS AND MANAGEMENT OF PATIENTS PRESENTING TO THE ED WITH SUSPICION OF ACS 118
THE ROLE OF CT IN THE ED 120
POTENTIAL NEW IMAGING TARGETS FOR CT IN PATIENTS PRESENTING WITH ACS 124
DOSE ISSUES 126
SUMMARY 127
REFERENCES 127
Chapter 11. Myocardial Perfusion by CT Versus Hybrid Imaging 135
TECHNOLOGY SUMMARY 136
CLINICAL EVIDENCE 138
LIMITATIONS 140
CLINICAL IMPLICATIONS 141
FUTURE PERSPECTIVES 143
SUMMARY 143
REFERENCES 143
Chapter 12. MDCT to Guide Transcatheter Aortic Valve Replacement and Mitral Valve Repair 147
TRANSCATHETER AORTIC VALVE REPLACEMENT 147
THE ONGOING DEBATE ON HOW TO SIZE THE ANNULUS WITH MDCT 151
MDCT FOR MITRAL VALVE REPAIR 154
SUMMARY 157
REFERENCES 158
Index 161