Inhaltsangabe1 Introduction.- 2 A Historical View.- 2.1 History of Angiography.- 2.2 The Development of Therapeutic Angiography.- 2.3 Modern Interventional Techniques.- 3 Percutaneous Transluminal Angioscopy.- 3.1 Material and Methods.- 3.1.1 Angioscopic Equipment.- 3.1.2 Access for Vascular Endoscopy.- 3.1.3 Intravascular Positioning of the Angioscope.- 3.1.4 Clearing the Blood from the Vascular Lumen.- 3.1.5 Forced Sodium Chloride Perfusion.- 3.1.6 Recording Techniques.- 3.2 Animal Studies as a Precondition for Angioscopy in Man.- 3.3 Indication for Angioscopy.- 4 Angioscopic Diagnosis of Vascular Changes.- 4.1 Normal Vessels.- 4.2 Pathological Vascular Features.- 4.2.1 Atherosclerosis.- 4.2.2 Thrombosis.- 4.2.3 Vascular Inflammation.- 4.2.4 Actinic Vascular Injuries.- 5 Interventional Procedures in Angioscopy.- 5.1 The Method of PTA Control.- 5.2 Angioscopic Results After PTA.- 5.3 Method for Lysis Control.- 5.4 Angioscopic Results of Local Lysis.- 5.5 Method of Stent Implantation.- 5.6 Angioscopic Results of Stent Implantation.- 5.6.1 Angioscopic Stent Implantation and Control in Animal Experiments.- 5.6.2 Angioscopic Stent Implantation and Control in Patients.- 5.7 The Invention of a Method of Percutaneous Transluminal Thrombus Extraction and Its Angioscopic Control.- 5.7.1 Principle, Material, and Method.- 5.7.2 Angioscopic and Angiographic Results in Animal Studies and Clinical Experience in Patients.- 5.8 Other Possibilities for the Use of Vascular Intraluminal Angioscopy.- 6 Conclusions.- 7 Future Aspects of Percutaneous Angioscopy.- References.