{
  "id": 170031,
  "title": "Why there is no relation between DICOM image data and week of patient's visit?",
  "url": "/competitions/osic-pulmonary-fibrosis-progression/discussion/170031",
  "author_name": "",
  "post_date": "2020-07-26T06:44:26.228337800Z",
  "votes": 3,
  "comment_count": 2,
  "views": 0,
  "content": "<p>A particular patient has visited 'n' number of weeks but there is no particular correlation to the dicom files. If they have given only one week's dicom image, then what shall i do with no image available for other weeks.</p>",
  "messages": [
    {
      "id": "945823",
      "postDate": "07/26/2020 06:44:26",
      "content": "<p>A particular patient has visited 'n' number of weeks but there is no particular correlation to the dicom files. If they have given only one week's dicom image, then what shall i do with no image available for other weeks.</p>",
      "rawMarkdown": "A particular patient has visited 'n' number of weeks but there is no particular correlation to the dicom files. If they have given only one week's dicom image, then what shall i do with no image available for other weeks.",
      "votes": null
    },
    {
      "id": "946266",
      "postDate": "07/26/2020 13:28:36",
      "content": "<p>I believe - and I may be wrong - that the data provides images from a single scan that happened at Week = 0. No more scans happened and only non-image data was then collected for the other visits. The only thing I am not sure about at the moment and I may have misunderstood is that some patients have 30 images whereas other patients have 300+ scan images. Do the DICOM files contain metadata that would help understand and make them more comparable across patients?</p>",
      "rawMarkdown": "I believe - and I may be wrong - that the data provides images from a single scan that happened at Week = 0. No more scans happened and only non-image data was then collected for the other visits. The only thing I am not sure about at the moment and I may have misunderstood is that some patients have 30 images whereas other patients have 300+ scan images. Do the DICOM files contain metadata that would help understand and make them more comparable across patients?",
      "votes": null
    },
    {
      "id": "946434",
      "postDate": "07/26/2020 15:18:16",
      "content": "<p>You are correct. When you take a CT scan, you can \"reconstruct\" the images every 5 mm or every 0.5 mm. Depends on your CT scanner and the reason for the scan. That is why you see the variation in number of images. Also, we might have been provided incomplete CT images for some patients, I don't know. The Dicom Metadata gives you positioning so you can calculate the implicit thickness of each slice.</p>\n\n<p>Hope that helps.</p>\n\n<p>-Rich</p>",
      "rawMarkdown": "You are correct. When you take a CT scan, you can \"reconstruct\" the images every 5 mm or every 0.5 mm. Depends on your CT scanner and the reason for the scan. That is why you see the variation in number of images. Also, we might have been provided incomplete CT images for some patients, I don't know. The Dicom Metadata gives you positioning so you can calculate the implicit thickness of each slice.\n\nHope that helps.\n\n-Rich",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 946266,
      "author_name": "maxpanas",
      "author_url": "",
      "post_date": "07/26/2020 13:28:36",
      "content": "<p>I believe - and I may be wrong - that the data provides images from a single scan that happened at Week = 0. No more scans happened and only non-image data was then collected for the other visits. The only thing I am not sure about at the moment and I may have misunderstood is that some patients have 30 images whereas other patients have 300+ scan images. Do the DICOM files contain metadata that would help understand and make them more comparable across patients?</p>",
      "votes": null,
      "replies": [
        {
          "id": 946434,
          "author_name": "richardepstein",
          "author_url": "",
          "post_date": "07/26/2020 15:18:16",
          "content": "<p>You are correct. When you take a CT scan, you can \"reconstruct\" the images every 5 mm or every 0.5 mm. Depends on your CT scanner and the reason for the scan. That is why you see the variation in number of images. Also, we might have been provided incomplete CT images for some patients, I don't know. The Dicom Metadata gives you positioning so you can calculate the implicit thickness of each slice.</p>\n\n<p>Hope that helps.</p>\n\n<p>-Rich</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "945823": "A particular patient has visited 'n' number of weeks but there is no particular correlation to the dicom files. If they have given only one week's dicom image, then what shall i do with no image available for other weeks.",
    "946266": "I believe - and I may be wrong - that the data provides images from a single scan that happened at Week = 0. No more scans happened and only non-image data was then collected for the other visits. The only thing I am not sure about at the moment and I may have misunderstood is that some patients have 30 images whereas other patients have 300+ scan images. Do the DICOM files contain metadata that would help understand and make them more comparable across patients?",
    "946434": "You are correct. When you take a CT scan, you can \"reconstruct\" the images every 5 mm or every 0.5 mm. Depends on your CT scanner and the reason for the scan. That is why you see the variation in number of images. Also, we might have been provided incomplete CT images for some patients, I don't know. The Dicom Metadata gives you positioning so you can calculate the implicit thickness of each slice.\n\nHope that helps.\n\n-Rich"
  },
  "source": "meta"
}