{
  "ptid_time": "135_S_4723_2016-05-11",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4723/2016-05-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,420 mm³, 59.3% below the reference mean. With a Z-score of -1.36 (8.7th percentile), this represents mild atrophy; hippocampal volume measures 7,437 mm³, 4.5% above the reference mean. With a Z-score of 0.42 (66.1th percentile), this represents normal volume ; whole brain volume measures 1,021,810 mm³, 4.8% above the reference mean. With a Z-score of 0.61 (72.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,053 mm³, 10.3% above the reference mean. With a Z-score of 0.64 (73.7th percentile), this represents normal volume ; fusiform gyrus volume measures 15,473 mm³, 9.1% below the reference mean. With a Z-score of -0.82 (20.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,063 mm³, 5.8% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume . ",
  "text_data": "Age is 73.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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). Cognitive testing (MMSE 30, MoCA 30) is intact, and there are no genetic (APOE4-negative) or amyloid (AV45-normal) risk factors.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:45:49.633860"
}