{
  "ptid_time": "116_S_1232_2011-02-25",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1232/2011-02-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,990 mm³, 39.5% below the reference mean. With a Z-score of -0.90 (18.3th percentile), this represents normal volume ; hippocampal volume measures 7,041 mm³, 1.0% below the reference mean. With a Z-score of -0.09 (46.2th percentile), this represents normal volume ; whole brain volume measures 937,227 mm³, 3.8% below the reference mean. With a Z-score of -0.48 (31.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,465 mm³, 5.7% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,189 mm³, 4.8% below the reference mean. With a Z-score of -0.44 (33.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,595 mm³, 8.2% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume . ",
  "text_data": "Age is 76.1 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Renal-Genitourinary; Allergies or Drug Sensitivities; Malignancy; Major Surgical Procedures. MMSE: 27.0. MoCA: 20.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.28 SUVR (moderate elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges, with Z-scores close to the mean. However, the MoCA score of 20 suggests mild cognitive impairment, while the MMSE of 27 is borderline normal. The absence of APOE4 and only moderate AV45 (amyloid) elevation suggests a lower Alzheimer's risk.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (due to conflicting cognitive scores but normal structural imaging)",
  "timestamp": "2025-07-26T12:00:42.785836"
}