Which physician is linked to advancing coronary interventions during the 1960s and 1970s?

• A. Charles Dotter
• B. Werner Forssman
• C. Wilhelm Roentgen
• D. Sven-Ivar Seldinger

Answer: (A)

The main idea is recognizing who helped launch the era of catheter-based, minimally invasive vascular treatment. Charles Dotter is the pivotal figure here: in 1964 he performed the first percutaneous transluminal angioplasty, using a catheter to open a blocked artery. This demonstrated that arteries could be treated from within, without open surgery, and it laid the groundwork for the later development of coronary interventions, which gained momentum in the late 1970s with balloon angioplasty. The other names point to different milestones: Werner Forssman did the first human cardiac catheterization in 1929; Sven-Ivar Seldinger introduced the safe percutaneous access method that standardizes catheter work; Wilhelm Roentgen is known for discovering X-rays. But Dotter’s pioneering work in catheter-based arterial treatment during that period is what links him to advancing coronary interventions.