{
  "ptid_time": "002_S_2073_2010-09-07",
  "img_path": "/data/qiuhui/data/adni/images/002_S_2073/2010-09-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,004 mm³, 10.4% below the reference mean. With a Z-score of -0.26 (39.7th percentile), this represents normal volume ; hippocampal volume measures 7,640 mm³, 0.6% below the reference mean. With a Z-score of -0.07 (47.4th percentile), this represents normal volume ; whole brain volume measures 1,096,050 mm³, 6.5% above the reference mean. With a Z-score of 0.81 (79.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,402 mm³, 13.1% above the reference mean. With a Z-score of 1.01 (84.5th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,862 mm³, 9.1% above the reference mean. With a Z-score of 1.02 (84.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,511 mm³, 0.0% below the reference mean. With a Z-score of -0.00 (49.9th percentile), this represents normal volume . ",
  "text_data": "Age is 63.4 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 29.0. MoCA: 26.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.18 SUVR (normal ); Amyloid beta: 1094.00 pg/mL (normal ); Total tau: 250.20 pg/mL (normal ); Phosphorylated tau: 24.09 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 26) are within normal limits, and biomarkers (Aβ, T-tau, P-tau, AV45) are normal. APOE4-negative status further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:18:50.304907"
}