{
  "ptid_time": "128_S_2151_2011-03-21",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2151/2011-03-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,518 mm³, 13.0% below the reference mean. With a Z-score of -0.31 (37.8th percentile), this represents normal volume ; hippocampal volume measures 7,063 mm³, 6.6% below the reference mean. With a Z-score of -0.64 (26.1th percentile), this represents normal volume ; whole brain volume measures 1,140,980 mm³, 5.7% above the reference mean. With a Z-score of 0.74 (77.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,197 mm³, 2.4% above the reference mean. With a Z-score of 0.16 (56.3th percentile), this represents normal volume ; fusiform gyrus volume measures 20,214 mm³, 7.3% above the reference mean. With a Z-score of 0.62 (73.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,071 mm³, 17.5% above the reference mean. With a Z-score of 1.57 (94.2th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 70.6 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ); Amyloid beta: 1130.00 pg/mL (normal ); Total tau: 185.70 pg/mL (normal ); Phosphorylated tau: 15.97 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (including hippocampal and entorhinal cortex) are within normal ranges or even slightly enlarged, with no significant atrophy. Cognitive scores (MMSE 28, MoCA 30) are excellent, and biomarkers (Aβ, tau, AV45) are normal. No evidence of neurodegeneration or amyloid pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T14:00:07.253265"
}