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I found that some of the patient who has Right… Aneurysm or Left… Aneurysm, their aneurysms are always at the oppisite position like the picture below.
\nI'm not major in this field so I want to make sure that is not an error. I asked ChatGPT, it said patient's right side will be the left side of the picture, vice versa. But you know, AI's words might be wrong. So I hope someone can give me an answer. Thanks!
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The standard radiological convention for image display follows the \"LPS\" orientation scheme, where increasing x coordinates are to the Left, increasing y coordinates are Posterior, and increasing z coordinates are Superior. So for axial images like this, the patients right side will be on the left side of the image and vice versa. Both of the images displayed in your post correctly show right sided aneurysms.
", "rawMarkdown": "The standard radiological convention for image display follows the \"LPS\" orientation scheme, where increasing x coordinates are to the **L**eft, increasing y coordinates are **P**osterior, and increasing z coordinates are **S**uperior. So for axial images like this, the patients right side will be on the left side of the image and vice versa. Both of the images displayed in your post correctly show right sided aneurysms.", "votes": 2, "replies": [ { "id": 3267357, "postDate": "2025-08-11T02:55:54.833Z", "content": "Got it! Thank you very much!
", "rawMarkdown": "Got it! Thank you very much!" }, { "id": 3273986, "postDate": "2025-08-23T18:18:19.187Z", "content": "Not familiar with the coordinate conventions in radiology but at x = 0, y = 0, that is the top left corner, correct?
\nSo for reference in LPS orientation, the eyes will be at the top, back of the head at the bottom, left side of image is right side of patient and vice versa, as I go through the scans I get closer to the top of the head correct?
", "rawMarkdown": "Not familiar with the coordinate conventions in radiology but at x = 0, y = 0, that is the top left corner, correct?\n\nSo for reference in LPS orientation, the eyes will be at the top, back of the head at the bottom, left side of image is right side of patient and vice versa, as I go through the scans I get closer to the top of the head correct?", "replies": [ { "id": 3274832, "postDate": "2025-08-25T13:49:09.920Z", "content": "This is correct
", "rawMarkdown": "This is correct", "votes": 1 } ] } ] }, { "id": 3266983, "postDate": "2025-08-10T06:06:27.080Z", "content": "I found that some of the patient who has Right… Aneurysm or Left… Aneurysm, their aneurysms are always at the oppisite position like the picture below.
\nI'm not major in this field so I want to make sure that is not an error. I asked ChatGPT, it said patient's right side will be the left side of the picture, vice versa. But you know, AI's words might be wrong. So I hope someone can give me an answer. Thanks!
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The standard radiological convention for image display follows the \"LPS\" orientation scheme, where increasing x coordinates are to the Left, increasing y coordinates are Posterior, and increasing z coordinates are Superior. So for axial images like this, the patients right side will be on the left side of the image and vice versa. Both of the images displayed in your post correctly show right sided aneurysms.
", "votes": 2, "replies": [ { "id": 3267357, "author_name": "Sheng-Kai Ku", "author_url": "", "post_date": "2025-08-11T02:55:54.833000", "content": "Got it! Thank you very much!
", "votes": 0, "replies": [] }, { "id": 3273986, "author_name": "ericmit25", "author_url": "", "post_date": "2025-08-23T18:18:19.187000", "content": "Not familiar with the coordinate conventions in radiology but at x = 0, y = 0, that is the top left corner, correct?
\nSo for reference in LPS orientation, the eyes will be at the top, back of the head at the bottom, left side of image is right side of patient and vice versa, as I go through the scans I get closer to the top of the head correct?
", "votes": 0, "replies": [ { "id": 3274832, "author_name": "Evan Calabrese", "author_url": "", "post_date": "2025-08-25T13:49:09.920000", "content": "This is correct
", "votes": 1, "replies": [] } ] } ] } ], "raw_markdown_by_id": { "3267310": "The standard radiological convention for image display follows the \"LPS\" orientation scheme, where increasing x coordinates are to the **L**eft, increasing y coordinates are **P**osterior, and increasing z coordinates are **S**uperior. So for axial images like this, the patients right side will be on the left side of the image and vice versa. Both of the images displayed in your post correctly show right sided aneurysms.", "3266983": "I found that some of the patient who has Right... Aneurysm or Left... Aneurysm, their aneurysms are always at the oppisite position like the picture below.\n\nI'm not major in this field so I want to make sure that is not an error. I asked ChatGPT, it said patient's right side will be the left side of the picture, vice versa. But you know, AI's words might be wrong. So I hope someone can give me an answer. Thanks!\n\n" } }