{
  "ptid_time": "129_S_4369_2017-06-21",
  "img_path": "/data/qiuhui/data/adni/images/129_S_4369/2017-06-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,710 mm³, 61.8% below the reference mean. With a Z-score of -1.48 (6.9th percentile), this represents mild atrophy; hippocampal volume measures 7,045 mm³, 6.8% below the reference mean. With a Z-score of -0.66 (25.4th percentile), this represents normal volume ; whole brain volume measures 1,018,400 mm³, 5.7% below the reference mean. With a Z-score of -0.73 (23.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,836 mm³, 6.5% below the reference mean. With a Z-score of -0.44 (33.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,448 mm³, 7.4% below the reference mean. With a Z-score of -0.63 (26.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,838 mm³, 7.0% below the reference mean. With a Z-score of -0.63 (26.4th percentile), this represents normal volume . ",
  "text_data": "Age is 73.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 23.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE is normal (30/30), but the MoCA (23/30) suggests mild cognitive impairment. No APOE4 or amyloid pathology (AV45 normal) reduces Alzheimer's likelihood.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T14:15:57.290861"
}