{
  "ptid_time": "137_S_0973_2008-06-03",
  "img_path": "/data/qiuhui/data/adni/images/137_S_0973/2008-06-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 57,623 mm³, 49.6% above the reference mean. With a Z-score of 1.19 (88.3th percentile), this represents mild enlargement; hippocampal volume measures 7,038 mm³, 6.9% below the reference mean. With a Z-score of -0.67 (25.1th percentile), this represents normal volume ; whole brain volume measures 1,031,200 mm³, 4.5% below the reference mean. With a Z-score of -0.58 (28.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,240 mm³, 3.4% above the reference mean. With a Z-score of 0.23 (59.1th percentile), this represents normal volume ; fusiform gyrus volume measures 18,700 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,679 mm³, 7.8% below the reference mean. With a Z-score of -0.70 (24.2th percentile), this represents normal volume . ",
  "text_data": "Age is 78.3 years. Gender is Male. Education: 20 years. MMSE: 26.0. Laboratory findings: Lymphocytes: 14.20 (significant reduced); Alkaline Phosphatase: 124.00 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (Z-score 1.19), but hippocampal and whole brain volumes are within normal ranges (Z-scores -0.67 and -0.58, respectively). The MMSE score of 26 is borderline but does not strongly indicate cognitive impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild ventricular enlargement but otherwise normal structural and cognitive findings)",
  "timestamp": "2025-07-26T16:21:55.346989"
}