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| Hauptseite > Publikationsdatenbank > Automated surgery planning for an obstructed nose by combining computational fluid dynamics with reinforcement learning > print |
| Hauptseite > Publikationsdatenbank > Automated surgery planning for an obstructed nose by combining computational fluid dynamics with reinforcement learning > print |
| 001 | 1024402 | ||
| 005 | 20250204113820.0 | ||
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| 100 | 1 | _ | |a Rüttgers, Mario |0 P:(DE-Juel1)177985 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Automated surgery planning for an obstructed nose by combining computational fluid dynamics with reinforcement learning |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2024 |b Elsevier Science |
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| 520 | _ | _ | |a Septoplasty and turbinectomy are among the most common interventions in the field of rhinology. Their constantly debated success rates and the lack of quantitative flow data of the entire nasal airway for planning the surgery necessitate methodological improvement. Thus, physics-based surgery planning is highly desirable. In this work, a novel and accurate method is developed to enhance surgery planning by physical aspects of respiration, i.e., to plan anti-obstructive surgery, for the first time a reinforcement learning algorithm is combined with large-scale computational fluid dynamics simulations. The method is integrated into an automated pipeline based on computed tomography imaging. The proposed surgical intervention is compared to a surgeon’s initial plan, or the maximum possible intervention, which allows the quantitative evaluation of the intended surgery. Two criteria are considered: (i) the capability to supply the nasal airway with air expressed by the pressure loss and (ii) the capability to heat incoming air represented by the temperature increase. For a test patient suffering from a deviated septum near the nostrils and a bony spur further downstream, the method recommends surgical interventions exactly at these locations. For equal weights on the two criteria (i) and (ii), the algorithm proposes a slightly weaker correction of the deviated septum at the first location, compared to the surgeon’s plan. At the second location, the algorithm proposes to keep the bony spur. For a larger weight on criterion (i), the algorithm tends to widen the nasal passage by removing the bony spur. For a larger weight on criterion (ii), the algorithm’s suggestion approaches the pre-surgical state with narrowed channels that favor heat transfer. A second patient is investigated that suffers from enlarged turbinates in the left nasal passage. For equal weights on the two criteria (i) and (ii), the algorithm proposes a nearly complete removal of the inferior turbinate, and a moderate reduction of the middle turbinate. An increased weight on criterion (i) leads to an additional reduction of the middle turbinate, and a larger weight on criterion (ii) yields a solution with only slight reductions of both turbinates, i.e., focusing on a sufficient heat exchange between incoming air and the air-nose interface. The proposed method has the potential to improve the success rates of the aforementioned surgeries and can be extended to further biomedical flows. |
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| 773 | _ | _ | |a 10.1016/j.compbiomed.2024.108383 |g Vol. 173, p. 108383 - |0 PERI:(DE-600)1496984-1 |p 108383 |t Computers in biology and medicine |v 173 |y 2024 |x 0010-4825 |
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