{
  "ptid_time": "023_S_0031_2011-10-20",
  "img_path": "/data/qiuhui/data/adni/images/023_S_0031/2011-10-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,024 mm³, 16.1% below the reference mean. With a Z-score of -0.43 (33.2th percentile), this represents normal volume ; hippocampal volume measures 6,576 mm³, 1.2% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; whole brain volume measures 872,959 mm³, 5.9% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,265 mm³, 5.7% below the reference mean. With a Z-score of -0.31 (37.9th percentile), this represents normal volume ; fusiform gyrus volume measures 13,753 mm³, 14.6% below the reference mean. With a Z-score of -1.10 (13.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,378 mm³, 7.5% above the reference mean. With a Z-score of 0.67 (74.7th percentile), this represents normal volume . ",
  "text_data": "Age is 83.7 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Musculoskeletal; Hematopoietic-Lymphatic; Major Surgical Procedures. MMSE: 30.0. MoCA: 28.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or show only mild atrophy (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T02:27:21.409013"
}