J 2021

PREVIS: Predictive visual analytics of anatomical variability for radiotherapy decision support

FURMANOVÁ, Katarína, Ludvig P MUREN, Oscar CASARES-MAGAZ, Vitali MOISEENKO, John P EINCK et. al.

Základní údaje

Originální název

PREVIS: Predictive visual analytics of anatomical variability for radiotherapy decision support

Autoři

FURMANOVÁ, Katarína (703 Slovensko, domácí), Ludvig P MUREN, Oscar CASARES-MAGAZ, Vitali MOISEENKO, John P EINCK, Sara PILSKOG a Renata G RAIDOU

Vydání

Computers & Graphics, Elsevier Science, 2021, 0097-8493

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10200 1.2 Computer and information sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 1.821

Kód RIV

RIV/00216224:14330/21:00124927

Organizační jednotka

Fakulta informatiky

UT WoS

000661427000001

Klíčová slova anglicky

Medical Visualization; Visual Analytics; Comparative Visualization; Ensemble Visualization; Radiotherapy Planning; Cohort Study

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 3. 11. 2022 12:04, RNDr. Katarína Furmanová, Ph.D.

Anotace

V originále

Radiotherapy (RT) requires meticulous planning prior to treatment, where the RT plan is optimized with organ delineations on a pre-treatment Computed Tomography (CT) scan of the patient. The conventionally fractionated treatment usually lasts several weeks. Random changes (e.g., rectal and bladder filling in prostate cancer patients) and systematic changes (e.g., weight loss) occur while the patient is being treated. Therefore, the delivered dose distribution may deviate from the planned. Modern technology, in particular image guidance, allows to minimize these deviations, but risks for the patient remain. We present PREVIS: a visual analytics tool for (i) the exploration and prediction of changes in patient anatomy during the upcoming treatment, and (ii) the assessment of treatment strategies, with respect to the anticipated changes. Records of during-treatment changes from a retrospective imaging cohort with complete data are employed in PREVIS, to infer expected anatomical changes of new incoming patients with incomplete data, using a generative model. Abstracted representations of the retrospective cohort partitioning provide insight into an underlying automated clustering, showing main modes of variation for past patients. Interactive similarity representations support an informed selection of matching between new incoming patients and past patients. A Principal Component Analysis (PCA)-based generative model describes the predicted spatial probability distributions of the incoming patient’s organs in the upcoming weeks of treatment, based on observations of past patients. The generative model is interactively linked to treatment plan evaluation, supporting the selection of the optimal treatment strategy. We present a usage scenario, demonstrating the applicability of PREVIS in a clinical research setting, and we evaluate our visual analytics tool with eight clinical researchers.