{
  "ptid_time": "126_S_2405_2012-10-10",
  "img_path": "/data/qiuhui/data/adni/images/126_S_2405/2012-10-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,946 mm³, 11.1% below the reference mean. With a Z-score of -0.25 (39.9th percentile), this represents normal volume ; hippocampal volume measures 7,254 mm³, 2.0% above the reference mean. With a Z-score of 0.18 (57.1th percentile), this represents normal volume ; whole brain volume measures 967,997 mm³, 0.7% below the reference mean. With a Z-score of -0.09 (46.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,465 mm³, 5.7% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,745 mm³, 16.1% above the reference mean. With a Z-score of 1.46 (92.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,969 mm³, 1.0% below the reference mean. With a Z-score of -0.09 (46.4th percentile), this represents normal volume . ",
  "text_data": "Age is 72.6 years. Gender is Female. Education: 13 years. Handedness: Right. Race: Asian. Medical history: Cardiovascular; Respiratory; Musculoskeletal; Major Surgical Procedures. MMSE: 25.0. MoCA: 22.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus) are all within normal ranges, with only the fusiform gyrus showing mild enlargement. Cognitive testing (MMSE: 25, MoCA: 22) suggests mild cognitive impairment, but the absence of significant atrophy or APOE4 reduces Alzheimer's likelihood.  \n**Diagnosis:** **MCI** (Mild Cognitive Impairment)  \n**Confidence:** **Medium** (due to borderline cognitive scores but normal structural imaging)",
  "timestamp": "2025-07-26T12:44:16.603227"
}