{
  "ptid_time": "005_S_4185_2012-04-02",
  "img_path": "/data/qiuhui/data/adni/images/005_S_4185/2012-04-02/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,246 mm³, 10.4% below the reference mean. With a Z-score of -0.90 (18.5th percentile), this represents normal volume ; whole brain volume measures 930,284 mm³, 9.6% below the reference mean. With a Z-score of -1.26 (10.4th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,922 mm³, 26.4% below the reference mean. With a Z-score of -1.73 (4.2th percentile), this represents moderate atrophy; fusiform gyrus volume measures 17,163 mm³, 5.0% below the reference mean. With a Z-score of -0.43 (33.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,261 mm³, 4.5% below the reference mean. With a Z-score of -0.40 (34.3th percentile), this represents normal volume . ",
  "text_data": "Age is 80.9 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is within normal limits, but there is mild whole brain atrophy and moderate entorhinal cortex atrophy, which are concerning for early neurodegenerative changes. However, cognitive scores (MMSE 29, MoCA 25) remain relatively intact, suggesting no significant functional impairment.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to structural changes without clear cognitive decline)",
  "timestamp": "2025-07-25T21:20:26.709732"
}