Popular Posts RSSMon, 12 Oct 2026 22:48:06 GMTTeaching case (fictional): ten lesions, largest 14 mm, smallest 3 mm. Single-isocentre dynamic conformal arcs, total treatment time under 20 minutes. I'd like feedback on the low-dose spill between the two frontal lesions.

]]>Mon, 12 Oct 2026 22:48:06 GMTTeaching case (fictional): T9 lesion with minor epidural extension. How would you contour the CTV around the epidural part, and would you go for separation surgery first?

]]>Sat, 10 Oct 2026 21:48:06 GMTTeaching case (fictional): 12 cm³ AVM, eloquent location. We are considering volume staging over two sessions six months apart. Experiences with staging versus hypofractionation?

]]>Wed, 07 Oct 2026 20:48:06 GMTTeaching case (fictional): lower-lobe lesion moving 22 mm. We compared an internal target volume plan with a gated plan. The gated plan reduced the lung V20 considerably, at the cost of longer treatment.

]]>Mon, 05 Oct 2026 19:48:06 GMTOur quarterly end-to-end test showed a 1.2 mm offset. The cause was a recalibrated imaging isocentre that had not been updated in one system. Sharing our root-cause checklist.

]]>Fri, 02 Oct 2026 18:48:06 GMTTeaching case (fictional): recurrent pain two years after MVD. Targeting was harder because of postoperative changes. Imaging and targeting approach in the comments.

]]>Tue, 29 Sep 2026 17:48:06 GMTWhen we started the certification process, we thought it was about QA documents. It turned out to change how our whole team works together. Here is what we learned in five years.

]]>Thu, 08 Oct 2026 16:48:06 GMTOur centre went from an empty bunker to our first radiosurgery patient in 18 months. Staffing, commissioning, training and the mentors who helped us along the way.

]]>Sun, 27 Sep 2026 15:48:06 GMTThe RTT sessions were packed this year. My three take-aways: patient coaching, surface-guidance thresholds and sharing setup photos between centres.

]]>Wed, 16 Sep 2026 23:48:06 GMTThe 11th Novalis Circle Conference takes place in Munich from 20 to 22 May 2027. Submit your abstract for the clinical, physics or RTT track by 15 January 2027.

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