{
  "ptid_time": "135_S_4722_2014-06-17",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4722/2014-06-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,173 mm³, 3.9% above the reference mean. With a Z-score of 0.09 (53.6th percentile), this represents normal volume ; hippocampal volume measures 8,015 mm³, 12.7% above the reference mean. With a Z-score of 1.16 (87.7th percentile), this represents mild enlargement; whole brain volume measures 1,017,740 mm³, 4.4% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,430 mm³, 6.6% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume ; fusiform gyrus volume measures 15,816 mm³, 7.0% below the reference mean. With a Z-score of -0.64 (26.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,612 mm³, 2.3% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume . ",
  "text_data": "Age is 70.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.06 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal or above-average measurements in most regions, including the hippocampus (mild enlargement) and whole brain volume, with only mild reductions in the entorhinal cortex and fusiform gyrus (both within normal range). Cognitive scores (MMSE 30, MoCA 30) are intact, and amyloid PET (AV45) is normal, with no APOE4 risk alleles.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:42:28.787143"
}