{
  "ptid_time": "057_S_0779_2009-09-02",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0779/2009-09-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,700 mm³, 14.2% above the reference mean. With a Z-score of 0.41 (66.0th percentile), this represents normal volume ; hippocampal volume measures 7,409 mm³, 6.3% above the reference mean. With a Z-score of 0.55 (70.8th percentile), this represents normal volume ; whole brain volume measures 1,051,680 mm³, 2.2% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,162 mm³, 20.3% below the reference mean. With a Z-score of -1.33 (9.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 19,728 mm³, 9.2% above the reference mean. With a Z-score of 0.80 (78.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,160 mm³, 10.0% below the reference mean. With a Z-score of -0.89 (18.6th percentile), this represents normal volume . ",
  "text_data": "Age is 82.5 years. Gender is Male. Education: 13 years. MMSE: 29.0. Logical Memory: 2.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The entorhinal cortex shows mild atrophy (Z-score -1.33, 9.2th percentile), which is concerning for early neurodegenerative changes. However, hippocampal and whole brain volumes are normal, and the MMSE score of 29 is intact, suggesting no significant cognitive impairment.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (due to isolated entorhinal atrophy but otherwise normal structural and cognitive findings)",
  "timestamp": "2025-07-26T08:04:49.644348"
}