{
  "ptid_time": "068_S_2316_2012-06-18",
  "img_path": "/data/qiuhui/data/adni/images/068_S_2316/2012-06-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,630 mm³, 19.8% above the reference mean. With a Z-score of 0.45 (67.5th percentile), this represents normal volume ; whole brain volume measures 1,047,350 mm³, 7.5% above the reference mean. With a Z-score of 0.94 (82.6th percentile), this represents normal volume ; entorhinal cortex volume measures 2,840 mm³, 22.7% below the reference mean. With a Z-score of -1.39 (8.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,467 mm³, 2.7% above the reference mean. With a Z-score of 0.24 (59.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,214 mm³, 15.4% below the reference mean. With a Z-score of -1.34 (9.0th percentile), this represents mild atrophy. ",
  "text_data": "Age is 75.3 years. Gender is Female. Education: 12 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Major Surgical Procedures. MMSE: 25.0. MoCA: 20.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The entorhinal cortex and middle temporal gyrus show mild atrophy (Z-scores -1.39 and -1.34, respectively), which are early markers of Alzheimer's pathology. The MMSE (25) and MoCA (20) scores indicate mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: **MCI** (Mild Cognitive Impairment)  \nConfidence: **Medium** (Atrophy in key regions and cognitive scores suggest MCI, but clinical correlation and longitudinal follow-up would strengthen confidence.)",
  "timestamp": "2025-07-26T08:57:59.603458"
}