{
  "ptid_time": "123_S_4127_2013-09-26",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4127/2013-09-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,977 mm³, 20.8% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; hippocampal volume measures 7,944 mm³, 3.4% above the reference mean. With a Z-score of 0.38 (64.8th percentile), this represents normal volume ; whole brain volume measures 976,978 mm³, 5.1% below the reference mean. With a Z-score of -0.63 (26.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,441 mm³, 11.6% below the reference mean. With a Z-score of -0.90 (18.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,784 mm³, 7.8% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,871 mm³, 1.7% above the reference mean. With a Z-score of 0.15 (56.0th percentile), this represents normal volume . ",
  "text_data": "Age is 65.1 years. Gender is Female. Education: 16 years. MMSE: 28.0. MoCA: 29.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.09 SUVR (normal ); Amyloid beta: 740.40 pg/mL (normal ); Total tau: 112.60 pg/mL (moderate reduced); Phosphorylated tau: 9.32 pg/mL (moderate reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are within normal ranges (Z-scores between -0.90 and +0.52), with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 28, MoCA 29) are normal, and biomarkers (Aβ normal, T-tau/P-tau moderately reduced) do not suggest Alzheimer’s pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:31:57.461179"
}