Update README.md

README.md

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 # MedSAM2: Medical Segment Anything Model v2
 
 ## Model Overview
-MedSAM2 is an advanced segmentation model tailored for medical imaging applications. Built upon the foundation of the Segment Anything Model (SAM) architecture, MedSAM2 has been specifically adapted and fine-tuned for various medical imaging modalities including CT, MRI, and ultrasound.
+MedSAM2 is a promptable segmentation segmentation model tailored for medical imaging applications. Built upon the foundation of the [Segment Anything Model (SAM) 2.1](https://github.com/facebookresearch/sam2), MedSAM2 has been specifically adapted and fine-tuned for various 3D medical images and videos.
 
 ## Available Models
 
@@ -26,7 +26,7 @@ MedSAM2 is an advanced segmentation model tailored for medical imaging applicati
 - **MedSAM2_US_Heart.pt**: Fine-tuned model specialized for heart ultrasound video segmentation
 - **MedSAM2_MRI_LiverLesion.pt**: Fine-tuned model for liver lesion segmentation in MRI scans
 - **MedSAM2_CTLesion.pt**: Fine-tuned model for general lesion segmentation in CT scans
-- **MedSAM2_latest.pt** (recommended): Latest version trained on a comprehensive combination of public datasets and newly annotated medical imaging data
+- **MedSAM2_latest.pt** (recommended): Latest version trained on the combination of public datasets and newly annotated medical imaging data
 
 ## Downloading Models
 
@@ -86,8 +86,4 @@ Alternatively, you can manually download the models from the [Hugging Face repos
 
 ## License
 
-# License information will be added later
-
-## Contact
-
-# Contact information will be added later
+The model weights can only be used for research and education purposes.