{
  "ptid_time": "037_S_4706_2016-05-18",
  "img_path": "/data/qiuhui/data/adni/images/037_S_4706/2016-05-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,952 mm³, 30.2% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume ; hippocampal volume measures 7,641 mm³, 4.8% below the reference mean. With a Z-score of -0.48 (31.5th percentile), this represents normal volume ; whole brain volume measures 1,092,500 mm³, 3.7% below the reference mean. With a Z-score of -0.52 (30.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,943 mm³, 7.5% below the reference mean. With a Z-score of -0.52 (30.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,277 mm³, 3.2% below the reference mean. With a Z-score of -0.26 (39.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,461 mm³, 4.2% below the reference mean. With a Z-score of -0.35 (36.3th percentile), this represents normal volume . ",
  "text_data": "Age is 64.7 years. Gender is Male. Education: 14 years. MMSE: 29.0. MoCA: 23.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ); Total tau: 305.50 pg/mL (normal ); Phosphorylated tau: 27.75 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges (Z-scores between -0.72 and -0.26). The MMSE (29/30) is normal, but the MoCA (23/30) suggests mild cognitive impairment. Biomarkers (T-tau, P-tau, AV45) are normal, and APOE4 heterozygous status is a moderate risk factor but not diagnostic.  \nDiagnosis: **MCI** (Mild Cognitive Impairment)  \nConfidence: **Medium** (due to normal biomarkers and imaging but borderline MoCA)",
  "timestamp": "2025-07-26T06:47:39.449300"
}