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2005 | 2004 | 2002 |

Year 2005

JN : J Med Assoc Thai. 2005 Nov;88(11):1674-9.
TI : Radiographic manifestations of pulmonary cryptococcosis.
AU : Piyavisetpat N, Chaowanapanja P.
EN-AB: Pulmonary cryptococcosis may occur in both immunocompromised and immunocompetent hosts. The purpose of the present study was to review the radiologic findings of pulmonary cryptococcosis in King Chulalongkorn Memorial Hospital. The radiographs and computed tomography of the chests of the patients who had a diagnosis of pulmonary cryptococcosis, between 1998-2001, were retrospectively reviewed. Seven patients were included. Five were HIV infected, three had diffuse reticulonodular opacities, two (of the three) patients also had accompanying cavities; two had solely pleural effusion. Two patients were immunocompetent; one had a pulmonary nodule and another one had an endobronchial lesion and multiple pulmonary masses in the collapsed lung seen on CT scan, which were consistent with cryptococcoma. None had adenopathy. There was a difference in the radiologic manifestations between immunocompromised and immunocompetent hosts. Knowledge in radiographic features in pulmonary cryptococcosis should help radiologists to early recognize the disease and may improve the treatment outcome. (NO 16471118)

JN : J Thorac Imaging. 2005 Feb;20(1):5-9.
TI : Small incidental pulmonary nodules: how useful is short-term interval CT follow-up?
AU : Piyavisetpat N, Aquino SL, Hahn PF, Halpern EF, Thrall JH.
EN-AB: PURPOSE: To determine whether short-term (<6 month) follow-up imaging by thoracic CT is necessary to evaluate small (< or =4 mm) noncalcified nodules (NCN) in patients with no history of malignancy or acute lung disease. MATERIALS AND METHODS: We reviewed serial thoracic helical CT scans between 1999-2000 obtained for the evaluation or follow-up imaging of small NCNs. CT scans were performed at 5-mm collimation. Patients were excluded if they had a history of neoplasm, infection, pulmonary fibrosis, or immune deficiency; also excluded if nodule(s) > or =5 mm at intake, or no follow-up scan within 1 year. NCNs were evaluated for number, size, configuration, and change in size over time. Exact 95% Confidence Intervals were used to estimate chances of nodule growth in 3-, 6-, and 12- month intervals. RESULTS: A total of 1826 patients received a CT for NCNs. Four hundred fourteen patients met inclusion criteria (221 women, 193 men; mean age, 65.6 years). Eighty-five patients had a single NCN, 329 had multiple NCNs. One hundred seventy-three patients had additional > or =5 mm nodules. One hundred twenty-seven patients were lost to follow up within the 1-year period. Eight nodules cleared. None of the < or =4 mm NCNs grew on follow-up imaging within 12 months. Three patients developed lung cancer in other nodules > or =5 mm (5-10 mm). These nodules grew on follow up intervals of 3-13 months. One patient had a 19 mm benign hamartoma that grew in 9 months. The calculated chance that a NCN < or =4 mm will grow within 3, 6, and 12 months (95% CI) is < or =0.89%, 1.01%, and 1.28%, respectively. CONCLUSION: The chance of growth in < or =4 mm NCNs in a 3- to 6-month period in patients with no previous history of malignancy or immune disorder is small; therefore, short-term follow-up imaging (<12 month) for nodules < or =4 mm is not necessary. (NO 15729116)

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Year 2004

JN : AJR Am J Roentgenol. 2004 Apr;182(4):983-9.
TI : False-positive FDG positron emission tomography uptake in nonmalignant chest abnormalities.
AU : Asad S, Aquino SL, Piyavisetpat N, Fischman AJ. (NO 15039176)

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Year 2002

AU : Piyavisetpat N, Mahayosnand A, Wangsuphachart S.
TI : Hysterosalpingographic accuracy of peritubal adhesion.
JN : J Med Assoc Thai 2002 Jun ; 85 (Suppl 1) : S210-S216 (NO 07669)

AU : Piyavisetpat N, Pantongrag-Brown L, Kasantikul V.
TI : CT features of adult Wilms' tumor : a case report.
JN : Chula Med J 2002 Jan ; 46 (1) : 65-71 (NO 08003)

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