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Kalender remembered by local leader in Diagnostic Imaging

By Ben Arnold, PhD, Columbia, KY

The World has lost one of the greatest minds and most impactful figures in Diagnostic imaging worldwide. It was suggested by fellow scientists in Europe that he should have been considered for a Nobel Prize for his leading work on developing the modern versions of spiral CT scanners. He was an outstanding scientist with over 300 publications and 30 patents. He was buried in his hometown of Mohrendorf, Germany. We will miss him. A tribute I wrote to his online Tribute Board follows:

Willi Kalender PhD left a great body of work in the medical imaging field that will last into the distant future. He was awarded the highly regarded Latsis Prize from the European Science Foundation (it's highest honor) and the top recognition of the United States Radiology and Imaging Society, the RSNA and many other awards.


Dr. Kalender was respected the world over in our field. I never heard a negative word spoken about Willi. He had a quick mind, full of imagination with deep insights and the ability to download his advancements in clear presentations.

I used to tell my kids, "This man in Germany, Willi Kalender, is the smartest person I know." They would usually want to know more about him. I wish I had another day now with him because I, too, still want to know more. He was a gentleman, fun loving, but still serious about his work.

We saw each other 2-4 times per year here and there throughout the world. I remember one time, the two of us near a pool somewhere (I can't recall where) drinking beer, of course he's German. We were discussing subtraction angiography in its early days. He was starting efforts on an analog video-subtraction system while I was working with a team to build the first digital subtraction angiography system. In his usual insightful way, he said "If you can get it fast enough," the central challenge of my project for sure.

He saw farther and clearer than most of us. He improved health care and made the world better. He was a leader. He spoke elegantly. He was so likable and so very smart. We competed on projects in Quantitative CT; he worked sometimes with Siemens Corporation while I then had a small company, Image Analysis. Any time I filed a new patent application, I would always search the patent database under Willi's name before I filed. We found ourselves on opposite sides of a patent infringement lawsuit, but we never lost respect for each other. I am honored to have known Willi. His work and example made me a better scientist.

My thoughts and prayers to all the family. He was special to all of us, and I can only imagine what he must be to you Marlene, Benjamin, Bjorn, and Christine. My best wishes and blessings.


This story was posted on 2024-11-23 22:45:17
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