{
  "ptid_time": "114_S_6309_2018-04-26",
  "img_path": "/data/qiuhui/data/adni/images/114_S_6309/2018-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,047 mm³, 10.3% below the reference mean. With a Z-score of -0.26 (39.9th percentile), this represents normal volume ; hippocampal volume measures 8,149 mm³, 6.0% above the reference mean. With a Z-score of 0.68 (75.1th percentile), this represents normal volume ; whole brain volume measures 1,012,340 mm³, 1.6% below the reference mean. With a Z-score of -0.20 (41.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,871 mm³, 0.6% below the reference mean. With a Z-score of -0.04 (48.3th percentile), this represents normal volume ; fusiform gyrus volume measures 20,564 mm³, 12.9% above the reference mean. With a Z-score of 1.46 (92.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,907 mm³, 1.9% above the reference mean. With a Z-score of 0.17 (56.7th percentile), this represents normal volume . ",
  "text_data": "Age is 65.2 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 27.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or slightly above, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 27) are well within normal limits, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:49:23.951668"
}