Magnetic resonance imaging for percutaneous interventions: = Magnetresonanzbildgebung für perkutane Interventionen
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis/Dissertation Book |
| Language: | English |
| Published: |
Erlangen ; Nürnberg
2014
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| Subjects: | |
| Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027797769&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| Physical Description: | III, 144 Seiten Illustrationen, Diagramme 21 cm |
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Record in the Search Index
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| adam_text | MAGNETIC RESONANCE IMAGING FOR
PERCUTANEOUS INTERVENTIONS
MAGNETRESONANZBILDGEBUNG FUR PERKUTANE
INTERVENTIONEN
DER TECHNISCHEN FAKULTAT DER
FRIEDRICH-A EXANDER- J NIVERSITAT ERIANGEN-N IIRNBERG
ZUR ERIANGUNG DES GRADES
D0KT0R-INGEN1EUR
VORGELEGT VON
EVA MARIA BARBARA ROTHGANG
AUS ERLANGEN
HTTP://D-NB.INFO/1066342857
CONTENTS
1 INTRODUCTION 1
1.1 MOTIVATION 1
1.1.1 PERCUTANEOUS MINIMALLY INVASIVE PROCEDURES 2
1.1.2 RATIONALE FOR MR GUIDANCE 3
1.1.3 CHALLENGES IN INTERVENTIONAL MRI 4
1.2 CONTRIBUTIONS TO THE STATE OF THE ART 6
1.3 OUTLINE 8
2 BASICS OF MAGNETIC RESONANCE IMAGING 11
2.1 ACQUISITION 11
2.1.1 SPIN AND MAGNETIZATION 11
2.1.2 SPIN EXCITATION AND RELAXATION 13
2.1.3 SPATIAL ENCODING 14
2.2 RECONSTRUCTION 17
2.2.1 FC-SPACE 17
2.2.2 FROM A-SPACE TO IMAGE SPACE 17
2.2.3 FOV AND SPATIAL RESOLUTION 19
2.3 PULSE SEQUENCES FOR INTERVENTIONAL MRI 20
2.31 GRADIENT ECHO 20
2.3.2 BALANCED STEADY-STATE FREE PRECESSION 21
2.3.3 ECHO PLANAR IMAGING 21
2.4 IMAGE ARTIFACTS IN INTERVENTIONAL MRI 22
2.4.1 ALIASING 22
2.4.2 B
Q
INHOMOGENEITY AND MAGNETIC SUSCEPTIBILITY 23
2.4.3 SLICE OVERLAP ARTIFACT 24
2.5 SUMMARY 25
3 REAL-TIME MR-GUIDED NEEDLE PLACEMENT 27
3.1 GUIDANCE CONCEPTS 27
3.1.1 FREEHAND TECHNIQUE 27
3.1.2 NAVIGATION AND ROBOTIC ASSISTANCE SYSTEMS 29
3.1.3 PASSIVE VERSUS ACTIVE VISUALIZATION 32
3.2 METHODS FOR IMPROVING THE WORKFLOW 33
3.2.1 VOLUMETRIC TRAJECTORY PLANNING 34
3.2.2 ENTRY POINT LOCALIZATION 36
3.2.3 TARGETING 43
3.2.4 AUTOMATIC SLICE ALIGNMENT 43
3.3 AUTOMATIC ENTRY POINT ADAPTATION 46
3.3.1 ALGORITHM 46
3.3.2 EVALUATION - RESULTS OF PHANTOM EXPERIMENTS 47
3.4 REAL-TIME NEEDLE ARTIFACT SEGMENTATION 49
3.4.1 ALGORITHM 49
3.4.2 EVALUATION 53
3.5 SUMMARY 54
4 MR THERMOMETRY 55
4.1 MOTIVATION 55
4.1.1 THERMAL ABLATION PROCEDURES 56
4.1.2 RATIONALE FOR MR THERMOMETRY 56
4.1.3 PRINCIPLES OF PRF-BASED TEMPERATURE MAPPING 57
4.2 METHODS FOR IMPROVING THE WORKFLOW 59
4.2.1 DEALING WITH MOTION 59
4.2.2 AUTOMATIC B
0
DRIFT CORRECTION 62
4.2.3 ENHANCED VISUALIZATION 66
4.3 CLINICAL PROTOTYPE 70
4.3.1 INTEGRATION OF WORKFLOW MODULES 70
4.3.2 COMMUNICATION BETWEEN PROTOTYPE AND MR SCANNER 73
4.4 SUMMARY 75
5 EVALUATION 77
5.1 NEEDLE GUIDANCE - VALIDATION OF TARGETING ACCURACY AND TIME .... 77
5.1.1 STUDY SETUP 77
5.1.2 RESULTS 80
5.1.3 DISCUSSION 84
5.2 NEEDLE GUIDANCE - PATIENT CASES 87
5.2.1 THERMAL ABLATION 87
5.2.2 ABDOMINAL BIOPSY 88
5.2.3 TARGETED DRUG DELIVERY 88
5.2.4 DISCUSSION 91
5.3 MR THERMOMETRY 92
5.3.1 TEMPERATURE MONITORING DURING CRYOABLATION 92
5.3.2 MR THERMOMETRY FOR VERIFICATION OF COIL SAFETY VALIDATIONS . 96
5.3.3 MR-GUIDED FOCAL THERAPY IN PROSTATE 99
5.4 SUMMARY 103
6 SUMMARY AND CONCLUSIONS 105
ACRONYMS 109
II
LIST OF SYMBOLS
111
LIST OF FIGURES
115
LIST OF TABLES
119
BIBLIOGRAPHY
121
VITAE
139
III
|
| any_adam_object | 1 |
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| dewey-ones | 610 - Medicine and health |
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| dewey-sort | 3610 |
| dewey-tens | 610 - Medicine and health |
| discipline | Medizin |
| format | Thesis Book |
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| illustrated | Illustrated |
| indexdate | 2024-12-20T17:09:12Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027797769 |
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| physical | III, 144 Seiten Illustrationen, Diagramme 21 cm |
| publishDate | 2014 |
| publishDateSearch | 2014 |
| publishDateSort | 2014 |
| record_format | marc |
| spellingShingle | Rothgang, Eva Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen Intervention (DE-588)4162156-6 gnd Kernspintomografie (DE-588)4120806-7 gnd Medizin (DE-588)4038243-6 gnd |
| subject_GND | (DE-588)4162156-6 (DE-588)4120806-7 (DE-588)4038243-6 (DE-588)4113937-9 |
| title | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen |
| title_alt | Magnetresonanzbildgebung für perkutane Interventionen |
| title_auth | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen |
| title_exact_search | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen |
| title_full | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen vorgelegt von Eva Maria Barbara Rothgang |
| title_fullStr | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen vorgelegt von Eva Maria Barbara Rothgang |
| title_full_unstemmed | Magnetic resonance imaging for percutaneous interventions = Magnetresonanzbildgebung für perkutane Interventionen vorgelegt von Eva Maria Barbara Rothgang |
| title_short | Magnetic resonance imaging for percutaneous interventions |
| title_sort | magnetic resonance imaging for percutaneous interventions magnetresonanzbildgebung fur perkutane interventionen |
| title_sub | = Magnetresonanzbildgebung für perkutane Interventionen |
| topic | Intervention (DE-588)4162156-6 gnd Kernspintomografie (DE-588)4120806-7 gnd Medizin (DE-588)4038243-6 gnd |
| topic_facet | Intervention Kernspintomografie Medizin Hochschulschrift |
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