MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project

Research output: Contribution to journalArticle

Standard

MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project. / Nyholm, Tufve; Svensson, Stina; Andersson, Sebastian; Jonsson, Joakim; Sohlin, Maja; Gustafsson, Christian; Kjellén, Elisabeth; Söderström, Karin; Albertsson, Per; Blomqvist, Lennart; Zackrisson, Björn; Olsson, Lars E.; Gunnlaugsson, Adalsteinn.

In: Medical Physics, Vol. 45, No. 3, 03.2018, p. 1295-1300.

Research output: Contribution to journalArticle

Harvard

Nyholm, T, Svensson, S, Andersson, S, Jonsson, J, Sohlin, M, Gustafsson, C, Kjellén, E, Söderström, K, Albertsson, P, Blomqvist, L, Zackrisson, B, Olsson, LE & Gunnlaugsson, A 2018, 'MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project', Medical Physics, vol. 45, no. 3, pp. 1295-1300. https://doi.org/10.1002/mp.12748

APA

Nyholm, T., Svensson, S., Andersson, S., Jonsson, J., Sohlin, M., Gustafsson, C., Kjellén, E., Söderström, K., Albertsson, P., Blomqvist, L., Zackrisson, B., Olsson, L. E., & Gunnlaugsson, A. (2018). MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project. Medical Physics, 45(3), 1295-1300. https://doi.org/10.1002/mp.12748

CBE

Nyholm T, Svensson S, Andersson S, Jonsson J, Sohlin M, Gustafsson C, Kjellén E, Söderström K, Albertsson P, Blomqvist L, Zackrisson B, Olsson LE, Gunnlaugsson A. 2018. MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project. Medical Physics. 45(3):1295-1300. https://doi.org/10.1002/mp.12748

MLA

Vancouver

Author

Nyholm, Tufve ; Svensson, Stina ; Andersson, Sebastian ; Jonsson, Joakim ; Sohlin, Maja ; Gustafsson, Christian ; Kjellén, Elisabeth ; Söderström, Karin ; Albertsson, Per ; Blomqvist, Lennart ; Zackrisson, Björn ; Olsson, Lars E. ; Gunnlaugsson, Adalsteinn. / MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project. In: Medical Physics. 2018 ; Vol. 45, No. 3. pp. 1295-1300.

RIS

TY - JOUR

T1 - MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project

AU - Nyholm, Tufve

AU - Svensson, Stina

AU - Andersson, Sebastian

AU - Jonsson, Joakim

AU - Sohlin, Maja

AU - Gustafsson, Christian

AU - Kjellén, Elisabeth

AU - Söderström, Karin

AU - Albertsson, Per

AU - Blomqvist, Lennart

AU - Zackrisson, Björn

AU - Olsson, Lars E.

AU - Gunnlaugsson, Adalsteinn

PY - 2018/3

Y1 - 2018/3

N2 - Purpose: We describe a public dataset with MR and CT images of patients performed in the same position with both multiobserver and expert consensus delineations of relevant organs in the male pelvic region. The purpose was to provide means for training and validation of segmentation algorithms and methods to convert MR to CT like data, i.e., so called synthetic CT (sCT). Acquisition and validation methods: T1- and T2-weighted MR images as well as CT data were collected for 19 patients at three different departments. Five experts delineated nine organs for each patient based on the T2-weighted MR images. An automatic method was used to fuse the delineations. Starting from each fused delineation, a consensus delineation was agreed upon by the five experts for each organ and patient. Segmentation overlap between user delineations with respect to the consensus delineations was measured to describe the spread of the collected data. Finally, an open-source software was used to create deformation vector fields describing the relation between MR and CT images to further increase the usability of the dataset. Data format and usage notes: The dataset has been made publically available to be used for academic purposes, and can be accessed from https://zenodo.org/record/583096. Potential applications: The dataset provides a useful source for training and validation of segmentation algorithms as well as methods to convert MR to CT-like data (sCT). To give some examples: The T2-weighted MR images with their consensus delineations can directly be used as a template in an existing atlas-based segmentation engine; the expert delineations are useful to validate the performance of a segmentation algorithm as they provide a way to measure variability among users which can be compared with the result of an automatic segmentation; and the pairwise deformably registered MR and CT images can be a source for an atlas-based sCT algorithm or for validation of sCT algorithm.

AB - Purpose: We describe a public dataset with MR and CT images of patients performed in the same position with both multiobserver and expert consensus delineations of relevant organs in the male pelvic region. The purpose was to provide means for training and validation of segmentation algorithms and methods to convert MR to CT like data, i.e., so called synthetic CT (sCT). Acquisition and validation methods: T1- and T2-weighted MR images as well as CT data were collected for 19 patients at three different departments. Five experts delineated nine organs for each patient based on the T2-weighted MR images. An automatic method was used to fuse the delineations. Starting from each fused delineation, a consensus delineation was agreed upon by the five experts for each organ and patient. Segmentation overlap between user delineations with respect to the consensus delineations was measured to describe the spread of the collected data. Finally, an open-source software was used to create deformation vector fields describing the relation between MR and CT images to further increase the usability of the dataset. Data format and usage notes: The dataset has been made publically available to be used for academic purposes, and can be accessed from https://zenodo.org/record/583096. Potential applications: The dataset provides a useful source for training and validation of segmentation algorithms as well as methods to convert MR to CT-like data (sCT). To give some examples: The T2-weighted MR images with their consensus delineations can directly be used as a template in an existing atlas-based segmentation engine; the expert delineations are useful to validate the performance of a segmentation algorithm as they provide a way to measure variability among users which can be compared with the result of an automatic segmentation; and the pairwise deformably registered MR and CT images can be a source for an atlas-based sCT algorithm or for validation of sCT algorithm.

KW - CT

KW - MRI

KW - Open dataset

KW - Organs at risk

KW - Radiotherapy

UR - http://www.scopus.com/inward/record.url?scp=85040965918&partnerID=8YFLogxK

U2 - 10.1002/mp.12748

DO - 10.1002/mp.12748

M3 - Article

C2 - 29322528

AN - SCOPUS:85040965918

VL - 45

SP - 1295

EP - 1300

JO - Medical Physics

JF - Medical Physics

SN - 0094-2405

IS - 3

ER -