{
  "ptid_time": "141_S_0767_2011-09-03",
  "img_path": "/data/qiuhui/data/adni/images/141_S_0767/2011-09-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,918 mm³, 7.7% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume ; hippocampal volume measures 6,113 mm³, 14.1% below the reference mean. With a Z-score of -1.29 (9.8th percentile), this represents mild atrophy; whole brain volume measures 879,317 mm³, 9.8% below the reference mean. With a Z-score of -1.23 (10.9th percentile), this represents mild atrophy; entorhinal cortex volume measures 4,132 mm³, 12.5% above the reference mean. With a Z-score of 0.77 (77.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,012 mm³, 5.9% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,711 mm³, 12.8% below the reference mean. With a Z-score of -1.11 (13.3th percentile), this represents mild atrophy. ",
  "text_data": "Age is 78.0 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary. MMSE: 29.0. MoCA: 23.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal and middle temporal gyrus volumes show mild atrophy (Z-scores -1.29 and -1.11, respectively), while other regions are within normal ranges. The MMSE is normal (29/30), but the MoCA (23/30) suggests mild cognitive impairment. The absence of APOE4 reduces genetic risk but does not rule out neurodegeneration.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (due to conflicting MMSE/MoCA results and mild atrophy in key regions but no significant functional decline yet).",
  "timestamp": "2025-07-26T16:48:41.755121"
}