{
  "id": 252961,
  "title": "Is the cancer grade same across all images?",
  "url": "/competitions/rsna-miccai-brain-tumor-radiogenomic-classification/discussion/252961",
  "author_name": "Old Monk",
  "post_date": "2021-07-14T12:28:04.306000",
  "votes": 7,
  "comment_count": 4,
  "views": 0,
  "content": "<p>Apologies, if this has been discussed elsewhere, but do we know if the images can be differentiated basis the cancer grade (Grade 1,2,3 or 4). As per my understanding the image for a Grade 1 cancer will be very different from a Grade 4 cancer. Earlier Grade cancers are likely to be mis-classified easily as well through the model. Would be great to know the thoughts of the community here.</p>\n<p><em>Replaced stage with grade as per correction in comments by <a href=\"https://www.kaggle.com/reubenschmidt\" target=\"_blank\">@reubenschmidt</a></em></p>",
  "messages": [
    {
      "id": 1387774,
      "postDate": "2021-07-14T12:28:04.307Z",
      "content": "<p>Apologies, if this has been discussed elsewhere, but do we know if the images can be differentiated basis the cancer grade (Grade 1,2,3 or 4). As per my understanding the image for a Grade 1 cancer will be very different from a Grade 4 cancer. Earlier Grade cancers are likely to be mis-classified easily as well through the model. Would be great to know the thoughts of the community here.</p>\n<p><em>Replaced stage with grade as per correction in comments by <a href=\"https://www.kaggle.com/reubenschmidt\" target=\"_blank\">@reubenschmidt</a></em></p>",
      "rawMarkdown": "Apologies, if this has been discussed elsewhere, but do we know if the images can be differentiated basis the cancer grade (Grade 1,2,3 or 4). As per my understanding the image for a Grade 1 cancer will be very different from a Grade 4 cancer. Earlier Grade cancers are likely to be mis-classified easily as well through the model. Would be great to know the thoughts of the community here.\n\n\n*Replaced stage with grade as per correction in comments by @reubenschmidt*",
      "votes": 6
    },
    {
      "id": 1388003,
      "postDate": "2021-07-14T15:19:18.527Z",
      "content": "<p>We don't tend to talk about staging of brain cancers (see <a href=\"https://www.abta.org/tumor_types/glioblastoma-gbm/\" target=\"_blank\">here</a>). We do talk about grading them though. What we're looking at in this competition is glioblastoma, which is a Grade IV brain tumour. The 'grade' is a reflection of its rate of growth and agressiveness.</p>\n<p>Staging of cancer strictly refers to its degree of spread. Stage 4 means distant metastasis (e.g. to bone from the prostate), and stage 1 to 3 refer to levels of spread intermediate to this.</p>\n<p>For interest's sake, glioblastoma very rarely metastasises outside of the brain (see <a href=\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4231629/\" target=\"_blank\">this article</a>).</p>",
      "rawMarkdown": "We don't tend to talk about staging of brain cancers (see [here](https://www.abta.org/tumor_types/glioblastoma-gbm/)). We do talk about grading them though. What we're looking at in this competition is glioblastoma, which is a Grade IV brain tumour. The 'grade' is a reflection of its rate of growth and agressiveness.\n\nStaging of cancer strictly refers to its degree of spread. Stage 4 means distant metastasis (e.g. to bone from the prostate), and stage 1 to 3 refer to levels of spread intermediate to this.\n\nFor interest's sake, glioblastoma very rarely metastasises outside of the brain (see [this article](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4231629/)).",
      "votes": 4,
      "replies": [
        {
          "id": 1388086,
          "postDate": "2021-07-14T16:32:39.197Z",
          "content": "<p>Thanks <a href=\"https://www.kaggle.com/reubenschmidt\" target=\"_blank\">@reubenschmidt</a> , this is very helpful!</p>",
          "rawMarkdown": "Thanks @reubenschmidt , this is very helpful!"
        }
      ]
    },
    {
      "id": 1388383,
      "postDate": "2021-07-14T22:23:32.573Z",
      "content": "<p>Brain cancers are typically measured in grades, where glioblastoma is exclusively grade IV.</p>",
      "rawMarkdown": "Brain cancers are typically measured in grades, where glioblastoma is exclusively grade IV.",
      "votes": 2
    },
    {
      "id": 1388427,
      "postDate": "2021-07-14T23:53:13.260Z",
      "rawMarkdown": "",
      "votes": 2,
      "isDeleted": true
    }
  ],
  "comments": [
    {
      "id": 1388003,
      "author_name": "Reuben Schmidt",
      "author_url": "",
      "post_date": "2021-07-14T15:19:18.527000",
      "content": "<p>We don't tend to talk about staging of brain cancers (see <a href=\"https://www.abta.org/tumor_types/glioblastoma-gbm/\" target=\"_blank\">here</a>). We do talk about grading them though. What we're looking at in this competition is glioblastoma, which is a Grade IV brain tumour. The 'grade' is a reflection of its rate of growth and agressiveness.</p>\n<p>Staging of cancer strictly refers to its degree of spread. Stage 4 means distant metastasis (e.g. to bone from the prostate), and stage 1 to 3 refer to levels of spread intermediate to this.</p>\n<p>For interest's sake, glioblastoma very rarely metastasises outside of the brain (see <a href=\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4231629/\" target=\"_blank\">this article</a>).</p>",
      "votes": 4,
      "replies": [
        {
          "id": 1388086,
          "author_name": "Old Monk",
          "author_url": "",
          "post_date": "2021-07-14T16:32:39.197000",
          "content": "<p>Thanks <a href=\"https://www.kaggle.com/reubenschmidt\" target=\"_blank\">@reubenschmidt</a> , this is very helpful!</p>",
          "votes": 0,
          "replies": []
        }
      ]
    },
    {
      "id": 1388383,
      "author_name": "Arianna Skirzynska",
      "author_url": "",
      "post_date": "2021-07-14T22:23:32.573000",
      "content": "<p>Brain cancers are typically measured in grades, where glioblastoma is exclusively grade IV.</p>",
      "votes": 2,
      "replies": []
    },
    {
      "id": 1388427,
      "author_name": "",
      "author_url": "",
      "post_date": "2021-07-14T23:53:13.260000",
      "content": "",
      "votes": 2,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1387774": "Apologies, if this has been discussed elsewhere, but do we know if the images can be differentiated basis the cancer grade (Grade 1,2,3 or 4). As per my understanding the image for a Grade 1 cancer will be very different from a Grade 4 cancer. Earlier Grade cancers are likely to be mis-classified easily as well through the model. Would be great to know the thoughts of the community here.\n\n\n*Replaced stage with grade as per correction in comments by @reubenschmidt*",
    "1388003": "We don't tend to talk about staging of brain cancers (see [here](https://www.abta.org/tumor_types/glioblastoma-gbm/)). We do talk about grading them though. What we're looking at in this competition is glioblastoma, which is a Grade IV brain tumour. The 'grade' is a reflection of its rate of growth and agressiveness.\n\nStaging of cancer strictly refers to its degree of spread. Stage 4 means distant metastasis (e.g. to bone from the prostate), and stage 1 to 3 refer to levels of spread intermediate to this.\n\nFor interest's sake, glioblastoma very rarely metastasises outside of the brain (see [this article](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4231629/)).",
    "1388383": "Brain cancers are typically measured in grades, where glioblastoma is exclusively grade IV.",
    "1388427": ""
  }
}