Related Experiment Video
Updated: Jan 10, 2026
08:14
Comprehensive Analysis of Transcription Dynamics from Brain Samples Following Behavioral Experience
Published on: August 26, 2014
12.1K
Connectome Analysis of the Nucleus Accumbens: Refining Radiosurgical Targeting for Addictive Disorders
Jose E Chang1, William O Contreras Lopez2,3, Richard Gonzalo Párraga4
1Neurosurgery-Gamma Knife Program, International Cancer Center, Diagnostic Hospital, San Salvador, SLV.
Cureus
|November 25, 2025
Summary
Stereotactic radiosurgery offers a precise, non-invasive treatment for addiction by targeting the nucleus accumbens (NAc) based on its neural connections. This approach visualizes NAc connectivity, enhancing patient-specific treatment for refractory addiction.
Area of Science:
- Neurosurgery
- Radiology
- Neuroscience
Background:
- Addiction poses a significant global health and socioeconomic challenge.
- Current treatments include medication, deep brain stimulation, and radiofrequency ablation.
- Stereotactic radiosurgery presents a non-invasive alternative for addiction management.
Purpose of the Study:
- To delineate the neural connections of the nucleus accumbens (NAc) for radiosurgical targeting.
- To optimize stereotactic radiosurgery planning for addiction treatment.
- To establish patient-specific targeting strategies using connectivity data.
Main Methods:
- Diffusion tensor imaging (DTI) was used to map NAc connectivity in healthy subjects.
- Autosegmentation and manual drawing identified key brain structures.
- Fractional anisotropy thresholds determined fiber connections for target selection.
Main Results:
- Strongest connections to the NAc were identified with the medial orbitofrontal cortex (mOFC), hypothalamus, ventral tegmental area (VTA), periventricular gray (PVG), and amygdala.
- Stereotactic coordinates were derived for NAc shell targeting with a 90 Gy dose.
- The optic apparatus received minimal radiation dose (≤ 5.4 Gy Dmax).
Conclusions:
- Radiosurgery is a safe and effective modality for functional disorders, including refractory addiction.
- Connectivity-based radiosurgery enhances visualization of NAc connections.
- This method improves the precision of patient-specific targeting for addiction treatment.
