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1,153 Possible Causes for &, &, MAA, Pulmonary, Scan, Tc 99m, W, W, Xe 133, Inhaled, perfusion, system, ventilation

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  • Hepatopulmonary Syndrome

    DIBrH SPECT-CT fusion images showed that perfusion defects were predominantly located at subpleural reticulo-nodular opacities and/or dilated vessels in the lung base.[ncbi.nlm.nih.gov] […] the preliminary stratification by the presence of hepatopulmonary syndrome with the aim to study the nature and frequency of extrahepatic syntropic lesions of organs and systems[ncbi.nlm.nih.gov] The diagnosis of IPS can be made by bubble echocardiography, technetium-99m-labeled macroaggregated albumin ((99m)Tc-MAA) scintigraphy or pulmonary arteriography.[ncbi.nlm.nih.gov] Definition Liver disease -- excessive pulmonary microvascular dilation /- AVMs -- altered gas exchange -- hypoxemia No relationship b/w severity of HPS and severity of liver[learnpicu.com] Noninvasive ventilation (NIV) was introduced, and his respiratory insufficiency promptly improved.[ncbi.nlm.nih.gov] We analyzed CT thorax scans in 23 patients with HPS, 29 patients with liver dysfunction without HPS, and 52 gender- and age-matched controls.[ncbi.nlm.nih.gov] GOAL: To determine the sensitivity of 99mTc-MAA in diagnosing HPS, to establish the utility of 99mTc-MAA in determining the influence of HPS on hypoxemia in patients with[ncbi.nlm.nih.gov] The pulmonary vascular responses to hypoxia examined before and after the spontaneous resolution of HPS confirmed that the pathogenesis of HPS could be functional and reversible[ncbi.nlm.nih.gov] We describe here a beneficial effect of inhaled prostacyclin including a decrease in respiratory symptoms and improved oxygenation in this clinical situation, with no approved[ncbi.nlm.nih.gov] Tc-99m MAA scans showed normal ventilation.[academic.oup.com]

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  • Swyer-James Syndrome

    Abstract Ventilation-perfusion lung imaging appears to be a significant nonivasive means of supporting the clinical diagnosis of Swyer-James syndrome.[ncbi.nlm.nih.gov] The right pulmonary system was normal. The left arterial system was small but patent. The left upper lobe was small and hyperlucent.[ncbi.nlm.nih.gov] Radiopharmaceutical: 20.6 mCi Xe-133 gas by inhalation and 4.1 mCi Tc-99m MAA i.v.[gamma.wustl.edu] W. James: A case of unilateral pulmonary emphysema. Thorax, London, 1953, 8: 133-136. W. M. Macleod: Abnormal transradiancy of one lung.[whonamedit.com] Findings: The Xe-133 washin ventilation images demonstrate hypoventilation of the left lower lung. The washout images show Xe-133 retention in this region.[gamma.wustl.edu] We compared the MRA and V/Q scan findings of the lungs of the patients.[ncbi.nlm.nih.gov] We report a case of Swyer-James syndrome, diagnosed from the study of severe pulmonary hypertension and with a fatal outcome.[ncbi.nlm.nih.gov] Lung inhalation scintigraphy shows delayed wash-in of radiotracer and prolonged air trapping during wash-out.[virtualpediatrichospital.org] PEFV curves from the "healthy" right lung and from the total respiratory system were similar in shape and showed a moderately obstructive pattern.[ncbi.nlm.nih.gov] Alazraki Charles W. O'Dell , Andrew Taylor , Charles B. Higgins , William L. Ashburn , Richard F. Schillaci , Naomi P.[pubs.rsna.org]

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  • Pulmonary Emphysema

    Shifts in perfusion after EBV therapy occurred only in patients with high baseline perfusion and did not correlate with improved 6MWTD.[ncbi.nlm.nih.gov] Immunohistochemical stains helped to demonstrate the communication between the airway system and interstitium.[ncbi.nlm.nih.gov] Recently Tc-99m-Technegas (Technegas) has been used for ventilation scintigraphy.[ncbi.nlm.nih.gov] Heidler J 1 , Fysikopoulos A , Wempe F , Seimetz M , Bangsow T , Tomasovic A , Veit F , Scheibe S , Pichl A , Weisel F , Lloyd KC , Jaksch P , Klepetko W , Weissmann N , von[ncbi.nlm.nih.gov] Abstract Two cases of ventilator-related neonatal lobar overexpansion with similar radiographic appearance, but probably different pathogenesis, are presented.[ncbi.nlm.nih.gov] AMP-activated protein kinase (AMPK) has emerged as an important integrator of signals that control energy balance and lipid metabolism.[ncbi.nlm.nih.gov] The mean alveolar area (MAA) was calculated for each group.In incomplete hanging, MAA was significantly higher than that observed in complete hanging and similar to the one[ncbi.nlm.nih.gov] Abstract Pulmonary emphysema is very uncommon in children in the first decade of life.[ncbi.nlm.nih.gov] To our knowledge this is the first case report of heliox and inhaled nitric oxide used simultaneously in localized interstitial pulmonary emphysema.[ncbi.nlm.nih.gov] PURPOSE: Tc-99m-Technegas-MAA single photon emission computed tomography (SPECT)-derived ventilation (V)/perfusion (Q) quotient SPECT was used to assess lung V-Q imbalance[ncbi.nlm.nih.gov]

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  • Right to Left Shunt

    The authors emphasize the value of perfusion lung scanning in the assessment of patients with unexplained dyspnea after thoracic surgery.[ncbi.nlm.nih.gov] Following SVC obstruction, collateral vessels may develop between the systemic venous system and the pulmonary venous system causing the alveolar space and right heart to[ncbi.nlm.nih.gov] Quantitative evaluation revealed an approximately 50% right to left shunt as indicated by Tc-99m MAA activity in the lungs and systemic organs.[ncbi.nlm.nih.gov] W., Wang, T., Abe, A. S., & de Andrade, D. O. (2013).[dovemed.com] KEYWORDS: FIO2 versus SpO2 curve; Newborn infants; Right-to-left shunt; Ventilation perfusion ratio[ncbi.nlm.nih.gov] […] arteriovenous anastomoses and/or through dilated pulmonary capillaries, as a result of highly increased pulmonary vascular pressure due to MPE.[ncbi.nlm.nih.gov] Treatment with inhaled nitric oxide (5 ppm) increased PaO2 from 47 to 90 mm Hg (FIo(2)1).[ncbi.nlm.nih.gov] In addition to this rare presentation, the patient also had systemic embolism, a known complication of atrial septal aneurysms.[ncbi.nlm.nih.gov] Abstract An unusual case of systemic vein to pulmonary vein communication in superior vena cava obstruction is reported.[ncbi.nlm.nih.gov] Jauss , M , Kaps , M , Keberle , M , Haberbosch , W , Dorndorf , W .[cambridge.org]

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  • Bronchiolitis Obliterans

    Perfusion was normal in the right lung but diffusely decreased in the left lung on perfusion scintigraphy by Tc99m-MAA.[ncbi.nlm.nih.gov] KEYWORDS: interstitial lung disease; respiratory medicine; rheumatology; systemic lupus erythematosus[ncbi.nlm.nih.gov] The dose of Tc-99m DTPA and Tc-99m MAA administered in this study were based on the “as low as reasonably achievable concept” and was consistent with the recently published[doi.org] Tsuchisaka A 1 , Numata S 1 , Teye K 1 , Natsuaki Y 1 , Kawakami T 2 , Takeda Y 3 , Wang W 4 , Ishikawa K 4 , Goto M 4 , Koga H 1 , Sogame R 1 , Ishii N 1 , Takamori S 5 ,[ncbi.nlm.nih.gov] Ventilation and perfusion (V/Q) scan can provide both regional and global pulmonary information.[ncbi.nlm.nih.gov] These AMPs may have important roles in the immune systems and pathogenesis of these patients. 2015 John Wiley & Sons Ltd.[ncbi.nlm.nih.gov] Late noninfectious pulmonary complications encompass all aspects of the bronchopulmonary anatomy.[ncbi.nlm.nih.gov] Abstract Bronchiolitis obliterans (BO) is the most remarkable pulmonary sequels of war-related sulfur mustard inhalation.[ncbi.nlm.nih.gov] Electronic address: naoki-w@med.kagawa-u.ac.jp. 9 Department of Internal Medicine, Division of Hematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa[ncbi.nlm.nih.gov] JOURNAL ARTICLES Griff S, Schonfeld N, Ammenwerth W, et al. Diagnostic yield of transbronchial cryobiopsy in non-neoplastic lung disease: a retrospective case series.[rarediseases.org]

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  • Idiopathic Pulmonary Fibrosis

    The patient underwent a single lung transplantation by means of a normothermic ex vivo lung perfusion (EVLP) approach according to the Toronto model.[ncbi.nlm.nih.gov] A simple-to-use staging system for IPF may improve prognostication, help guide management, and facilitate research.[ncbi.nlm.nih.gov] Abstract Technegas, a newly developed ultra-fine dry dispersion of Tc-99m labeled carbon with a particle size of approximately 5 nm to 20 nm, possesses the properties for[ncbi.nlm.nih.gov] , Greer R , Mason W , Kaner RJ , Monroy V , Wang M , Lynch D , Colby T , Anstrom KJ , Becker RC , Eisenstein EL , MacIntyre NR , Morrison LD , Rochon J , Steele MP , Sundy[ncbi.nlm.nih.gov] Such talk has amped up expectations for pamrevlumab, which has played second fiddle to lead candidate roxadustat until now.[fiercebiotech.com] Results of HRCT scanning are abnormal for most patients with IPF.[emedicine.com] On March 2, 2010, InterMune announced that it had submitted a Marketing Authorization Application (MAA) to the European Medicines Agency (EMA), seeking approval to market[web.archive.org] pulmonary rehabilitation have been shown.[patient.info] Currently, no literature concerning water repellent inhalation as a trigger of acute exacerbation of IPF is available.[ncbi.nlm.nih.gov] […] mismatch from ventilation of lung tissue with capillary destruction and perfusion of under ventilated alveoli; smaller component due to reduced diffusion across a fibrotic[pathologyoutlines.com]

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  • Cardiac Sarcoidosis

    […] stage (normal perfusion with inflammation), advanced stage (abnormal perfusion with inflammation) and end stage (abnormal perfusion with no inflammation).[consultqd.clevelandclinic.org] Abstract Cardiac involvement by systemic sarcoidosis is well known, but occurs rarely.[pediatrics.aappublications.org] Ergometric and scintigraphic studies of the myocardium at rest and following a stress test with 99m Tc showed a paradoxical perfusion defect in the inner layer of the myocardium[revespcardiol.org] W. et al . ATS/ERS/WASOG statement on sarcoidosis.[nature.com] Pressors for hypotension were administered intravenously; morphine sulfate and propofol were administered, the trachea was intubated, and mechanical ventilation begun.[nejm.org] Quercetin Tisopurine Topiroxostat Others Aminopterin Azathioprine Methotrexate Mycophenolic acid Pemetrexed Pralatrexate Many others Others Precursors: Adenine Adenosine AMP[en.wikipedia.org] Researchers analyzed 191 fluorodeoxyglucose PET-CT scans , including three follow-up scans, from 188 patients (mean age, 52 years; 72% women) from December 2014 to December[healio.com] ., discuss chronic thromboembolic pulmonary hypertension and possible treatment options.[medprofvideos.mayoclinic.org] Tc] scintigraphy), CMR, PET, and endomyocardial biopsy.[dovepress.com] […] probability of transmission from one person to another depends upon several factors, including the number of infectious droplets expelled by the carrier, the effectiveness of ventilation[en.wikipedia.org]

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  • Pulmonary Hypertension

    […] of perfused lung volumes, and (3) threshold-based segmentation of perfused lung volumes divided by segmented lung volumes at CT (perfusion index).[ncbi.nlm.nih.gov] BACKGROUND: Arteriovenous (AV) fistulae is an extremely rare disease of vascular malformation that involves fistulae formation between the systemic and pulmonary AV systems[ncbi.nlm.nih.gov] […] controversies and new recommendations in detail. a Arthritis Center b Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, USA Correspondence to Harrison W.[journals.lww.com] Moreover, inhalation of drug requires cessation of mechanical ventilation, if patient is on high frequency oscillatory ventilation.[ncbi.nlm.nih.gov] At present there are 10 or 11 cyclic nucleotide phosphodiesterases that hydrolyze the phosphodiester bond of cyclic GMP or cyclic AMP, converting them to 5′-GMP or 5′-AMP,[doi.org] The anomalies were confirmed by contrast-enhanced CT scan (CT pulmonary angiography), systemic arterial angiography and pulmonary angiography.[ncbi.nlm.nih.gov] A Marketing Authorisation Application (MAA) for ambrisentan was filed with the European Medicines Agency (EMEA) earlier this year.[web.archive.org] Chronic thromboembolic pulmonary hypertension and other pulmonary artery obstructions.[patient.info] The impact of the route of delivery and the optimal dosing for transitioning inhaled treprostinil to oral treprostinil or selexipag is unknown.[ncbi.nlm.nih.gov] Torbicki A, Perrier A, Konstantinides S, Agnelli G, Galiè N, Pruszczyk P, Bengel F, Brady AJ, Ferreira D, Janssens U, Klepetko W, Mayer E, Remy-Jardin M, Bassand JP; ESC Committee[web.archive.org]

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  • Chronic Thromboembolic Pulmonary Hypertension

    CONCLUSION: DCE lung perfusion MRI has increased sensitivity when compared with perfusion scintigraphy in screening for CTEPH.[ncbi.nlm.nih.gov] Abstract Behçet's disease is a systemic vasculitis characterised by recurrent mouth and genital ulcers and uveitis.[ncbi.nlm.nih.gov] We devised a noninvasive quantitative index of response to BPA using three-dimensional fractal analysis (3D-FA) of technetium-99m-macroaggregated albumin (Tc-MAA) single-photon[ncbi.nlm.nih.gov] Crossref PubMed Moser K M, Auger W R, Fedullo P F, Chronic major-vessel thromboembolic pulmonary hypertension, Circulation (1990);81(6): pp. 1735-1743.[ecrjournal.com] In distal CTEPH, dead-space ventilation correlated with exercise capacity and was associated with survival.[ncbi.nlm.nih.gov] V/Q scan showed high probability, intermediate probability, and low probability/normal scan in 52, three, and 59 patients, respectively.[ncbi.nlm.nih.gov] […] within pulmonary arterial branches, filling pulmonary arterial lumina with collagenous obstructions.[ncbi.nlm.nih.gov] Sildenafil 20 mg orally 3 times/day was started at week 24 of gestation, and inhaled iloprost was added at 26 weeks and titrated to 5 µg inhaled every 2 hrs in order to optimize[ncbi.nlm.nih.gov] […] diagnoses with mcc 315 Other circulatory system diagnoses with cc 316 Other circulatory system diagnoses without cc/mcc Convert I27.24 to ICD-9-CM Code History 2018 (effective[icd10data.com] Ventilation–perfusion (V/Q) scintigraphy has a high sensitivity to detect embolic disease but its value has been challenged with the emergence of multidetector CT pulmonary[doi.org]

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  • Inhalation of Nitric Oxide

    OBJECTIVE: To image the spatial distribution of pulmonary blood flow by means of scintigraphy, evaluate ventilation-perfusion (VA/Q) matching and pulmonary blood shunting[ncbi.nlm.nih.gov] In the second patient, systemic oxygenation improved markedly 30 minutes after initiation of NO.[ncbi.nlm.nih.gov] ., and Timothy W. Evans, M.D., Ph.D.[nejm.org] […] oscillatory ventilation and extracorporeal membrane oxygenation.[ncbi.nlm.nih.gov] RESULTS: Asthma symptom scores, lung function parameters, BHR to methacholine and AMP, and eNO levels at day 90 were significantly improved versus day 0 (all p 20 AMP were[ncbi.nlm.nih.gov] High resolution CT chest scan showed diffuse centrilobular opacities, bronchiectatic changes, and bronchial wall thickening.[ncbi.nlm.nih.gov] CONCLUSIONS: Using NO inhalation to treat neonatal pulmonary hypertension can significantly improve oxygen supply, reduce pulmonary artery pressure, shorten treatment time[ncbi.nlm.nih.gov] […] to 30%-50% systemic.[ncbi.nlm.nih.gov] , Van Meurs K , Allen M , Vohr B , Ballard R , Ballard P , Blaisdell C , Durand D , Black D , Eichenwald E , Keller R , Mammel M , Merrill J , Rogers E , Ryan R , Truog W[ncbi.nlm.nih.gov] Hypoxic pulmonary vasoconstriction (HPV) is thought to actively regulate ventilation-perfusion (V̇a/Q̇) matching, reducing perfusion in regions of alveolar hypoxia.[ncbi.nlm.nih.gov]

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