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Letter to the Editor of Radiotherapy and Oncology regarding the paper titled “MRI and FUNDUS image fusion for improved ocular biometry in Ocular Proton Therapy” by Via et al.

  • Jan-Willem M. Beenakker
    Correspondence
    Corresponding author at: Leiden University Medical Center, 2333ZA Leiden, The Netherlands.
    Affiliations
    Department of Radiation Oncology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands

    Department of Radiology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands

    Department of Ophthalmology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands
    Search for articles by this author
  • Coen R.N. Rasch
    Affiliations
    Department of Radiation Oncology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands
    Search for articles by this author
      With great interest have we read the recent publication of Via et al. [
      • Via R.
      • Pica A.
      • Antonioli L.
      • Paganelli C.
      • Fattori G.
      • Spaccapaniccia C.
      • et al.
      MRI and FUNDUS image fusion for improved ocular biometry in Ocular Proton Therapy.
      ], who propose a method to combine optical fundus photographs and magnetic resonance images (MRI) of the eye. Combining the strengths of different imaging modalities is an important path to improve the outcomes for patients with an intraocular tumor. Based on a flat tumor component that was missed on the MRI of two patients, the authors conclude that MRI is limited in determining the tumor extent. However, in the last decade, ocular MRI has seen a number of considerable technical advances [
      • Niendorf T.
      • Beenakker J.-W.M.
      • Langner S.
      • Erb-Eigner K.
      • Cuadra M.B.
      • Beller E.
      • et al.
      Ophthalmic magnetic resonance imaging: where are we (Heading To)?.
      ], resulting in significant improvements in image quality. Unfortunately, the MR-protocol used by Via et al. lacks most of these advances [
      • Via R.
      • Hennings F.
      • Pica A.
      • Fattori G.
      • Beer J.
      • Peroni M.
      • et al.
      Potential and pitfalls of 1.5T MRI imaging for target volume definition in ocular proton therapy.
      ].
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