{
  "ptid_time": "014_S_4401_2012-04-12",
  "img_path": "/data/qiuhui/data/adni/images/014_S_4401/2012-04-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,731 mm³, 11.7% below the reference mean. With a Z-score of -0.29 (38.5th percentile), this represents normal volume ; hippocampal volume measures 8,184 mm³, 6.5% above the reference mean. With a Z-score of 0.73 (76.7th percentile), this represents normal volume ; whole brain volume measures 1,126,270 mm³, 9.4% above the reference mean. With a Z-score of 1.17 (88.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,948 mm³, 1.4% above the reference mean. With a Z-score of 0.11 (54.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,872 mm³, 9.1% above the reference mean. With a Z-score of 1.03 (84.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 25,206 mm³, 22.8% above the reference mean. With a Z-score of 2.03 (97.9th percentile), this represents significant enlargement. ",
  "text_data": "Age is 68.0 years. Gender is Female. Education: 20 years. MMSE: 29.0. MoCA: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within or above the reference range, with no atrophy observed. Cognitive scores (MMSE and MoCA) are in the normal range (29/30), and there is no indication of cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:54:39.792127"
}