{ "id": 523550, "title": "inconsistency in instance number in file name", "url": "/competitions/rsna-2024-lumbar-spine-degenerative-classification/discussion/523550", "author_name": "Rohit Chaudhari", "post_date": "2024-08-01T13:31:30.208000", "votes": 3, "comment_count": 0, "views": 0, "content": "

Hey Friends,

\n

Please beware of using dicom metadata and instance number as is without verifying.
\nI had raised issue of inconsistent instance numbering here

\n

but there seems no remedy for this,
\nToday i found that multiple folders have missing dicom images.
\nPlease take this in account if you are using instance number in any way(in preprocessing or as a feature)

\n

For Example:

\n
study_id =   series_id =  has multiple missing instance number files.\n\n[,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ]\n
", "messages": [ { "id": 2943273, "postDate": "2024-08-01T13:31:30.207Z", "content": "

Hey Friends,

\n

Please beware of using dicom metadata and instance number as is without verifying.
\nI had raised issue of inconsistent instance numbering here

\n

but there seems no remedy for this,
\nToday i found that multiple folders have missing dicom images.
\nPlease take this in account if you are using instance number in any way(in preprocessing or as a feature)

\n

For Example:

\n
study_id =   series_id =  has multiple missing instance number files.\n\n[,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ,\n ]\n
", "rawMarkdown": "Hey Friends,\n\nPlease beware of using dicom metadata and instance number as is without verifying.\nI had raised issue of inconsistent instance numbering [here](https://www.kaggle.com/competitions/rsna-2024-lumbar-spine-degenerative-classification/discussion/519208)\n\nbut there seems no remedy for this,\nToday i found that multiple folders have missing dicom images.\nPlease take this in account if you are using instance number in any way(in preprocessing or as a feature)\n\nFor Example:\n``` python\n\nstudy_id = 208289456 and series_id = 4140564625 has multiple missing instance number files.\n\n['/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/1.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/3.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/5.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/7.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/9.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/11.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/13.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/15.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/17.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/19.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/21.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/23.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/25.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/27.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/29.dcm']\n```\n", "votes": 3 } ], "comments": [], "raw_markdown_by_id": { "2943273": "Hey Friends,\n\nPlease beware of using dicom metadata and instance number as is without verifying.\nI had raised issue of inconsistent instance numbering [here](https://www.kaggle.com/competitions/rsna-2024-lumbar-spine-degenerative-classification/discussion/519208)\n\nbut there seems no remedy for this,\nToday i found that multiple folders have missing dicom images.\nPlease take this in account if you are using instance number in any way(in preprocessing or as a feature)\n\nFor Example:\n``` python\n\nstudy_id = 208289456 and series_id = 4140564625 has multiple missing instance number files.\n\n['/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/1.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/3.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/5.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/7.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/9.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/11.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/13.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/15.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/17.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/19.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/21.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/23.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/25.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/27.dcm',\n '/kaggle/input/rsna-2024-lumbar-spine-degenerative-classification/train_images/208289456/4140564625/29.dcm']\n```\n" } }