{
  "ptid_time": "062_S_1182_2009-03-04",
  "img_path": "/data/qiuhui/data/adni/images/062_S_1182/2009-03-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,165 mm³, 24.6% below the reference mean. With a Z-score of -0.56 (28.7th percentile), this represents normal volume ; hippocampal volume measures 7,314 mm³, 2.8% above the reference mean. With a Z-score of 0.26 (60.1th percentile), this represents normal volume ; whole brain volume measures 1,004,340 mm³, 3.0% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,386 mm³, 19.4% above the reference mean. With a Z-score of 1.19 (88.3th percentile), this represents mild enlargement; fusiform gyrus volume measures 16,391 mm³, 3.7% below the reference mean. With a Z-score of -0.33 (37.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,837 mm³, 7.0% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges or even slightly above average, with no significant atrophy. The MMSE score of 30/30 indicates intact cognitive function, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:19:41.679187"
}