{
  "ptid_time": "023_S_6399_2018-05-30",
  "img_path": "/data/qiuhui/data/adni/images/023_S_6399/2018-05-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,582 mm³, 16.8% below the reference mean. With a Z-score of -0.42 (33.7th percentile), this represents normal volume ; hippocampal volume measures 8,884 mm³, 15.6% above the reference mean. With a Z-score of 1.75 (96.0th percentile), this represents moderate enlargement; whole brain volume measures 1,147,000 mm³, 11.5% above the reference mean. With a Z-score of 1.43 (92.3th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,866 mm³, 0.7% below the reference mean. With a Z-score of -0.05 (47.9th percentile), this represents normal volume ; fusiform gyrus volume measures 20,238 mm³, 11.1% above the reference mean. With a Z-score of 1.25 (89.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,316 mm³, 18.5% above the reference mean. With a Z-score of 1.64 (95.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 64.0 years. Gender is Female. Education: 12 years. Handedness: Right. Race: White. MMSE: 28.0. MoCA: 25.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.08 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal to mildly/moderately enlarged structures, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 28, MoCA 25) are within normal limits, and amyloid PET (AV45) is normal, suggesting no significant neurodegenerative pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:09:51.150855"
}