نتایج جستجو برای: lung perfusion scintigraphy

تعداد نتایج: 361201  

2002

A. Aerosol Ventilation Scintigraphy A diagnostic imaging test that records the bronchopulmonary distribution of an inhaled radioactive aerosol within the lungs. B. Gas Ventilation Scintigraphy A diagnostic imaging test that records the pulmonary distribution of a radioactive gas during breathing maneuvers. C. Pulmonary Perfusion Scintigraphy A diagnostic imaging test that records the distributi...

Journal: :Annals of nuclear medicine 2002
Masami Kawamoro Yasuharu Ogura Norinari Honda Katashi Satoh Kazuyoshi Suga Yutaka Mori Teruhiko Imai Tomio Inoue Isamu Narabayashi

The aim of this study is to re-evaluate and clarify the diagnostic role of ventilation/perfusion lung scintigraphy in Japan, now that single-detector-row helical CT and multidetector-row CT are available in clinical practice. The Respiratory Nuclear Medicine Working Group of the Japanese Society of Nuclear Medicine distributed a questionnaire to institutions in Japan equipped with scintillation...

Journal: :Journal of nuclear medicine technology 2014
Seung Wook Ryu Adrian Waugh Kevin C Allman

Extrapulmonary deposition of macroaggregated albumin particles on lung perfusion scintigraphy occurs in the presence of right-to-left shunting, as demonstrated in this case of portosystemic shunting related to superior vena cava obstruction by germ cell tumor of the mediastinum. The case demonstrates the importance of examining tracer deposition within the entire field of view on (99m)Tc-macroa...

2014
Sait Sager Sertac Asa Reşit Akyel Ersan Atahan Bedii Kanmaz

Swyer James (McLeod's) syndrome (SJMS) is an uncommon disease, which occurs as a result of childhood bronchiolitis obliterans. Patients may not be diagnosed until later in their life. A 46-year-old man underwent ventilation/perfusion scintigraphy for acute onset of dyspnea. The scan showed markedly diminished ventilation and perfusion unilaterally on the right middle and inferior lobes. However...

2014
Ajda Skarlovnik Damjana Hrastnik Jure Fettich Marko Grmek

BACKGROUND In current clinical practice lung scintigraphy is mainly used to exclude pulmonary embolism (PE). Modified diagnostic criteria for planar lung scintigraphy are considered, as newer scitigraphic methods, especially single photon emission computed tomography (SPECT) are becoming more popular. PATIENTS AND METHODS Data of 98 outpatients who underwent planar ventilation/perfusion (V/Q)...

2012
Vesna Cukic

INTRODUCTION Nowadays an increasing number of lung resections are being done because of the rising prevalence of lung cancer that occurs mainly in patients with limited lung function, what is caused by common etiologic factor - smoking cigarettes. Loss of lung tissue in such patients can worsen much the postoperative pulmonary function. So it is necessary to asses the postoperative pulmonary fu...

Journal: :Postgraduate medical journal 1993
P Kaboli J R Buscombe P J Ell

Ventilation and perfusion lung scintigraphy is an established and safe noninvasive technique which has been used for nearly 30 years to establish the diagnosis of pulmonary embolism. Recently, in common with other diagnostic tests, there has arisen the need to reassess the effectiveness of this test in the clinical setting. A retrospective analysis of 244 patients undergoing ventilation-perfusi...

2017
Jussara de Almeida Bruno Rafael Amorim Belo Nunes Paulo Sampaio Gutierrez Vera Demarchi Aiello

Her technetium-99m diethylenetriaminepentaacetic acid (99mTc-DTPA) radioaerosol inhalation lung scintigraphy (May 21, 2008) revealed marked hypoventilation of the left lung and retention of the radiotracer in the right peri-hilar region, suggestive of a parenchymal process. The use of 99mTC human albumin macroaggregates (99mTC MAA) revealed no perfusion in the left lung and perfusion defects in...

2017
Christopher S. Johns Andrew J. Swift Smitha Rajaram Paul J.C. Hughes David J. Capener David G. Kiely James M. Wild

PURPOSE To assess the diagnostic accuracy of magnetic resonance imaging (MRI) perfusion against perfusion single photon emission tomography (SPECT) screening for chronic thromboembolic pulmonary hypertension (CTEPH). Ventilation/perfusion (V/Q) scintigraphy is recommended to screen for suspected CTEPH. It has previously been shown that 3D dynamic contrast-enhanced (DCE) lung perfusion MRI has a...

2010
Rodolfo C Morice Carlos A Jimenez Georgie A Eapen Reza J Mehran Leendert Keus David Ost

BACKGROUND Predicting postoperative lung function is important for estimating the risk of complications and long-term disability after pulmonary resection. We investigated the capability of vibration response imaging (VRI) as an alternative to lung scintigraphy for prediction of postoperative lung function in patients with intrathoracic malignancies. METHODS Eighty-five patients with intratho...

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