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• W2340632763 abstract "Purpose: To determine changes in the signal intensity of intracerebral hemorrhagic lesions according to the time interval, between the onset of symptoms and MR imaging in the T1-weighted (T1W1), T2-weighted (T2W1) and diffusion-weighted modes. Materials and Methods: Thirty-four patients with hemorrhagic stroke who underwent DWI and conventional MRI were involved in this study. Hemorrhagic phase was determined according to the time interval between the onset of symptoms and MR scanning, and was as follows: acute (3 days or less): eight patients); early subacute (7 days or less): ten patients; late subacute (4 weeks or less): seven patients; early chronic (3 months or less) : four patients); and late chronic (more than 3 months): five patients. Using a 1.5T MR imager and the single-shot echo-planar imaging technique, T1-weighted, fast spin-echo T2-weighted, and diffusion-weighted were obtained. In all cases qualitative signal intensity (SI) at the center of a lesion was recorded, and the ratio between this and normal brain parenchyma was calculated. Results: SI at the center of a lesion was found to be iso or high/high/high (T1WI/T2WI/DWI) in five of eight acute-phase cases (interval of 24 hours or less) and low/low/low in the remaining three (interval of 72 hours or less). Other signal intensities were as follows: early subacute phase: high/low/low (all ten cases); late subacute phase: high/high/high (all seven cases); early chronic phase: high/high/high (all four cases); late chronic phase: low/high/low (all five cases). Mean SIRs were as follows: in the five acute-phase cases in which SI was iso or high: 1.420.78 / 2.580.84 / 1.350.08 (T1WI / T2WI / DWI); in the remaining three acute-phase cases: 0.94 0.18 / 0.630.16 / 0.270.10; in the early subacute phase, 1.350.01 / 0.970.21 / 0.860.22 in early subacute phase, 1.580.04 / 1.540.09 / 1.440.14; in the early chronic phase: 1.260.11 / 1.060.14 / 0.970.12; and in the late chronic phase: 0.652.23 / 1.510.12 / 0.230.18. Conclusion: The DWI findings of intracerebral hemorrhage reflect the findings of T2WI. When interpreting the DWI findings in patients with intracerebral hemorrhage, an understanding of the temporal evolution of this is very helpful . The no-show rate, patient distribution, chief complaint, type and number of additional radiologic examinations, patient compliance rate, biopsy result, rate of cancer detection, and staging of cancers were determined. The merits and demerits of the clinic were also assessed. Results: A total of 671 patients attended, with a no-show rate of 13.2%. Referrals from the Health Promation Centre accounted for 90.4% of patient visits. The most frequent complaint was a suspicious nodule at mammography. One additional radiologic examination was performed in 429 patients, two examinations in 70, and three or more examations in five. The most frequent type of examination was ultrasonography, followed by magnification compression view, mammography, and ultrasound-guided aspiration biopsy. An additional radiologic examination was recommended in 81.2% of patients and compliance rate was 96.7%. Primary breast cancer was diagnosed in 16 patients (2.1%), and was found to be stage 0 and 1 in 64.3% of these. No significant demerits were apparent. Conclusion: Radiologic examinations play a very important role in the detection of early-stage breast cancer, and the establishment of an early detection clinic lead by a radiologist is a very effective and recommendable approach to screening.',PY = '2002-00-00',RF = '5',BN = '" @default.
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• W2340632763 date "2002-01-01" @default.
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• W2340632763 title "Diffusion Weighted MR Image of Intracranial Hemorrhage" @default.
• W2340632763 doi "https://doi.org/10.3348/jkrs.2002.47.1.1" @default.
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