{
  "ptid_time": "128_S_2123_2012-11-06",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2123/2012-11-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,122 mm³, 21.4% above the reference mean. With a Z-score of 0.54 (70.4th percentile), this represents normal volume ; hippocampal volume measures 7,427 mm³, 3.4% below the reference mean. With a Z-score of -0.38 (35.3th percentile), this represents normal volume ; whole brain volume measures 1,134,570 mm³, 10.2% above the reference mean. With a Z-score of 1.28 (89.9th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,205 mm³, 8.0% above the reference mean. With a Z-score of 0.62 (73.3th percentile), this represents normal volume ; fusiform gyrus volume measures 19,562 mm³, 7.4% above the reference mean. With a Z-score of 0.84 (79.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,681 mm³, 10.5% above the reference mean. With a Z-score of 0.94 (82.5th percentile), this represents normal volume . ",
  "text_data": "Age is 65.9 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ); Total tau: 155.90 pg/mL (mild reduced); Phosphorylated tau: 12.71 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges or mildly above average, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE, MoCA) are perfect, and biomarkers (T-tau, P-tau, AV45) do not indicate Alzheimer's pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:59:25.551211"
}