# Error in drawing 2D ultrasound ROi with slicer

**URL:** <https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [January 24, 2024, 1:50am UTC](https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941 "2024-01-24T01:50:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nancy](https://avatars.discourse-cdn.com/v4/letter/n/4af34b/32.png) [@Nancy](https://discourse.slicer.org/u/Nancy)\
**Post date:** [January 24, 2024, 1:50am UTC](https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941/1 "2024-01-24T01:50:16Z")

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When I finished sketching the ROI of an ultrasound image and then opened another patient’s image to prepare for sketching, I found that the ROI that had just been sketched appeared on another patient’s image. Where is the problem? Please help take a look, thank you.

 ![屏幕截图 2024-01-24 094925](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/4/745601981454ecf81ff8d89c06e7f41b290ae048.jpeg)

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [January 24, 2024, 3:56pm UTC](https://discourse.slicer.org/t/error-in-drawing-2d-ultrasound-roi-with-slicer/33941/2 "2024-01-24T15:56:36Z")

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You need to be sure to close the scene (from the file menu). Otherwise the existing segmentations are retained.