{
  "ptid_time": "135_S_4281_2011-10-14",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4281/2011-10-14/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,462 mm³, 4.9% above the reference mean. With a Z-score of 0.45 (67.3th percentile), this represents normal volume ; whole brain volume measures 1,051,260 mm³, 7.9% above the reference mean. With a Z-score of 0.99 (83.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,958 mm³, 7.8% above the reference mean. With a Z-score of 0.48 (68.3th percentile), this represents normal volume ; fusiform gyrus volume measures 16,859 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,621 mm³, 2.9% below the reference mean. With a Z-score of -0.25 (40.2th percentile), this represents normal volume . ",
  "text_data": "Age is 77.5 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Neurologic; Endocrine-Metabolic. MMSE: 27.0. MoCA: 28.0. Logical Memory: 9.0. Laboratory findings: Vitamin B12: 908.00 (significant elevated); Neutrophils: 6.46 (significant elevated); Cholesterol (High Performance): 265.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ); Total tau: 308.10 pg/mL (normal ); Phosphorylated tau: 29.09 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges, with no significant atrophy. Cognitive scores (MMSE 27, MoCA 28) are well within normal limits, and biomarkers (T-tau, P-tau, AV45) are normal. APOE4-negative status further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:32:33.624884"
}