{
  "ptid_time": "129_S_6452_2019-07-10",
  "img_path": "/data/qiuhui/data/adni/images/129_S_6452/2019-07-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,572 mm³, 16.9% below the reference mean. With a Z-score of -0.42 (33.7th percentile), this represents normal volume ; hippocampal volume measures 8,365 mm³, 8.9% above the reference mean. With a Z-score of 0.99 (84.0th percentile), this represents normal volume ; whole brain volume measures 973,958 mm³, 5.4% below the reference mean. With a Z-score of -0.67 (25.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,874 mm³, 25.2% above the reference mean. With a Z-score of 1.95 (97.5th percentile), this represents moderate enlargement; fusiform gyrus volume measures 16,836 mm³, 7.5% below the reference mean. With a Z-score of -0.85 (19.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,301 mm³, 8.7% above the reference mean. With a Z-score of 0.77 (78.0th percentile), this represents normal volume . ",
  "text_data": "Age is 63.3 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 20.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges or even above average, with no significant atrophy. The entorhinal cortex shows moderate enlargement, which is atypical for Alzheimer's but not indicative of pathology. Cognitive scores (MMSE 30, MoCA 29) are intact, and APOE4 status does not override the absence of structural or functional deficits.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:19:30.418301"
}