{
  "ptid_time": "072_S_4383_2013-12-09",
  "img_path": "/data/qiuhui/data/adni/images/072_S_4383/2013-12-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,634 mm³, 20.5% below the reference mean. With a Z-score of -0.49 (31.2th percentile), this represents normal volume ; hippocampal volume measures 6,838 mm³, 9.5% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume ; whole brain volume measures 1,097,230 mm³, 1.7% above the reference mean. With a Z-score of 0.21 (58.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,173 mm³, 1.8% above the reference mean. With a Z-score of 0.12 (54.8th percentile), this represents normal volume ; fusiform gyrus volume measures 18,474 mm³, 1.9% below the reference mean. With a Z-score of -0.16 (43.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,576 mm³, 1.1% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume . ",
  "text_data": "Age is 74.0 years. Gender is Male. Education: 18 years. MMSE: 29.0. MoCA: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 29, MoCA 30) are intact, and amyloid PET (AV45) is normal. No significant atrophy or biomarker evidence of Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:20:06.541026"
}