#91
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#92
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Çà ñîâåòû âñåì -- áîëüøîå ðóññêîå merci. À ïðî ÏÊÀ-òî, ÷òî ñêàæåòå, äîðîãîé saab?
Äà, è åùå ïî ïîâîäó ñîâåòîâ ä-ðà Alex'a íå åñòü æèðíîãî âñïîìíèë öèòàòó èç "Íîñà", î÷åíü ïîäõîäÿùóþ ê ñëó÷àþ. - Âåðèòå ëè, - ñêàçàë äîêòîð íè ãðîìêèì, íè òèõèì ãîëîñîì, íî ÷ðåçâû÷àéíî óâåòëèâûì è ìàãíåòè÷åñêèì, - ÷òî ÿ íèêîãäà èç êîðûñòè íå ëå÷ó. Ýòî ïðîòèâíî ìîèì ïðàâèëàì è ìîåìó èñêóññòâó. Ïðàâäà, ÿ áåðó çà âèçèòû, íî åäèíñòâåííî ñ òåì òîëüêî, ÷òîáû íå îáèäåòü ìîèì îòêàçîì. Êîíå÷íî, ÿ áû ïðèñòàâèë âàø íîñ; íî ÿ âàñ óâåðÿþ ÷åñòüþ, åñëè óæå âû íå âåðèòå ìîåìó ñëîâó, ÷òî ýòî áóäåò ãîðàçäî õóæå. Ïðåäîñòàâüòå ëó÷øå äåéñòâèþ ñàìîé íàòóðû. Ìîéòå ÷àùå õîëîäíîþ âîäîþ, è ÿ âàñ óâåðÿþ, ÷òî âû, íå èìåÿ íîñà, áóäåòå òàê æå çäîðîâû, êàê åñëè áû èìåëè åãî. All credits, òàê ñêàçàòü, -- Íèêîëàþ Âàñèëüåâè÷ó. |
#94
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#95
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PS Ïî òåìå: [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Öèòàòà:
PS Ìíå ïîêàçàëèñü èíòåðåñíûìè íåñòàíäàðòûå ñëàéäû ïî òåìå: [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Öèòàòà:
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#96
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////////////
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#97
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Îñîáåííî ìíå ïîíðàâèëîñü Âàøå "Âîçìîæíî è ñóùåñòâóþò ïóáëèêàöèè ïîääåðæèâàþùèå âàøó òî÷êó çðåíèÿ." Èíòåðåñíî âñå-òàêè ñóùåñòâóþò èëè íåò? Âû èõ íå íàøëè? Íåóæåëè ÿ îáìàíóë Âàñ è ââåë â çàáëóæäåíèå îáùåñòâåííîñòü? |
#98
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Ïðèåçæèé ñïðàøèâàåò îäåññèòà: — Ñêàæèòå, åñëè ÿ ïîéäó ïî ýòîé óëèöå, òàì áóäåò âîêçàë? — Ïîñëóøàéòå, óâàæàåìûé, òàì áóäåò âîêçàë, äàæå åñëè Âû íå ïîéäåòå ïî ýòîé óëèöå. Ýòî ÿ ê òîìó, ÷òî êàê ìíå êàæåòñÿ, â íåêîòîðûõ ñëó÷àÿõ (ñì. çàêðûòóþ íà çàìîê òåìó) æèçíåñïîñîáíûé ìèîêàðä ïðèñóòñòâóåò, äàæå åñëè îí Âàìè è íå çàðåãèñòðèðîâàí. Ñ óâàæåíèåì. |
#99
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P.S. Evaluation of myocardial viability after myocardial infarction R. Krishnamani and R. Senior* Northwick Park Hospital, Harrow, Middlesex, U.K. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] The Scintigraphic Evaluation of Myocardial Viability with Tc-99m Sestamibi and FDG Jac D. Scheiner, MD J. Anthony Parker, MD, PhD [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Evaluation of myocardial viability with contrast-enhanced magnetic resonance imaging--comparison of the late enhancement technique with positronemission tomography Hunold P, Brandt-Mainz K, Freudenberg L, Vogt FM, Neumann T, Knipp S, Barkhausen J. Institut fur Diagnostische und Interventionelle Radiologie, Universitatsklinikum Essen. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Optimal viability evaluation by a simplified rest redistribution thallium-201 & contractility assessment with low dose dobutamine combined protocol. Journal of Nuclear Cardiology, Volume 11, Issue 4, Pages S36-S37 S. Heiba, G. Yee, J. Coppola, T. Elmquist, R. Braff, I. Youssef, J. Ambrose, H. Abdel-Dayem [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Cardiac SPECT with iodine-123-labeled fatty acids : evaluation of myocardial viability with BMIPP Auteur(s) / Author(s) KNAPP F. F. ; FRANKEN P. ; KROPP J. ; [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Does intraoperative evaluation of left ventricular contractile reserve predict myocardial viability? A clinical study using dobutamine stress echocardiography in patients undergoing coronary artery bypass graft surgery Auteur(s) / Author(s) LEUNG Jacqueline M. (1) ; BELLOWS Wayne H. (2) ; PASTOR Darwin (1) ; [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Role of Thallium-201 and PET Imaging in Evaluation of Myocardial Viability and Management of Patients with Coronary Artery Disease and Left Ventricular Dysfunction Jamshid Maddahi, Heinrich Schelbert, Richard Brunken and Marcelo Di Carli [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Invest Radiol. 2007 Apr;42(4):248-255.Improved Evaluation of Myocardial Perfusion and Viability With the Magnetic Resonance Blood Pool Contrast Agent P792 in a Nonreperfused Porcine Infarction Model.Peukert D, Kaufels N, Laule M, Schnorr J, Carme S, Farr T, Schonenberger E, Taupitz M, Hamm B, Dewey M. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] Expert Rev Cardiovasc Ther. 2007 Mar;5(2):307-21. Links Cardiovascular MRI: its current and future use in clinical practice.Rehwald WG, Wagner A, Sievers B, Kim RJ, Judd RM. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] J Thorac Imaging. 2007 Feb;22(1):35-9. Links Coronary CTA: indications, patient selection, and clinical implications.Thilo C, Auler M, Zwerner P, Costello P, Schoepf UJ. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] J Nucl Med. 2006 Jan;47(1):74-82. Links Roles of nuclear cardiology, cardiac computed tomography, and cardiac magnetic resonance: assessment of patients with suspected coronary artery disease.Berman DS, Hachamovitch R, Shaw LJ, Friedman JD, Hayes SW, Thomson LE, Fieno DS, Germano G, Slomka P, Wong ND, Kang X, Rozanski A. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] J Nucl Med. 2006 Jul;47(7):1107-18. Links Roles of nuclear cardiology, cardiac computed tomography, and cardiac magnetic resonance: Noninvasive risk stratification and a conceptual framework for the selection of noninvasive imaging tests in patients with known or suspected coronary artery disease.Berman DS, Hachamovitch R, Shaw LJ, Friedman JD, Hayes SW, Thomson LE, Fieno DS, Germano G, Wong ND, Kang X, Rozanski A. [Ññûëêè äîñòóïíû òîëüêî çàðåãèñòðèðîâàííûì ïîëüçîâàòåëÿì ] |
#100
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#101
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#102
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#103
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#104
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Åñëè âàì íåòðóäíî, ðàññêàæèòå, ïîæàëóéñòà, êàêèì îáðàçîì áûëè îöåíåíû ñïåöèôè÷íîñòü è ÷óâñòâèòåëüíîñòü Gated MIBI SPECT ñ íèòðîãëèöåðèíîì ïî ñðàâíåíèþ ñ áîëåå ïðèâû÷íûìè ìåòîäàìè îöåíêè æèçíåñïîñîáíîñòè ìèîêàðäà? Ìîæíî ñ ïîìîùüþ ññûëîê. Ñïàñèáî.
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#105
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Tc-99m tetrofosmin tomography after nitrate administration in patients with ischemic left ventricular dysfunction: Relation to metabolic imaging by PETWei He, MD,a Wanda Acampa, MD,a,b Ciro Mainolfi, MD,a Francesco Menna, MD,a Anna Rita Sorrentino, MD,a,c Mario Petretta, MD,d and Alberto Cuocolo, MDa,c Background. In patients with ischemic left ventricular (LV) dysfunction, myocardial perfusion imaging after nitrate administration may improve the identification of dysfunctional but viable myocardium. This study was designed to assess the relationship between tetrofosmin uptake after nitrate administration and metabolic activity as assessed by positron emission tomography (PET) in patients with ischemic LV dysfunction. Methods and Results. Thirty-six patients with chronic myocardial infarction and LV dysfunction (ejection fraction, 35% 6%) underwent resting technetium 99m tetrofosmin single photon emission computed tomography (SPECT) imaging under control conditions (baseline) and after sublingual administration of 10 mg isosorbide dinitrate. Within 1 week, all patients underwent metabolic PET imaging with fluorine 18–fluorodeoxyglucose. Tetrofosmin uptake and metabolic activity were measured in 13 segments/patient. Regional LV function was assessed in corresponding segments by echocardiography. On baseline tetrofosmin imaging, 53 (40%) of the 131 akinetic or dyskinetic segments had reduced (<55% of peak activity) tracer uptake. Of these segments, 14 (26%) showed enhanced tetrofosmin uptake after nitrate administration (>10% vs baseline) and the remaining 38 (74%) did not change. The sensitivity and specificity of baseline tetrofosmin SPECT for detecting preserved metabolic activity were 69% and 86%, respectively. After nitrate administration, the sensitivity was higher (81%, P <.05 vs baseline) whereas the specificity was not different (86%, P not significant). Concordance between tetrofosmin SPECT and PET in differentiating viable and necrotic myocardium was observed in 94 (72%) of the 131 akinetic or dyskinetic segments at baseline (k= 0.35) and in 108 segments (82%) after nitrate administration (k= 0.53). Conclusions. After nitrate administration, tetrofosmin uptake in dysfunctional segments correlated with metabolic activity as assessed by fluorodeoxyglucose PET imaging better than baseline. Thus tetrofosmin SPECT after nitrate administration may improve the identification of ischemic but still viable myocardium in patients with chronic ischemic LV dysfunction. (J Nucl Cardiol 2003;10:599-606.) Key Words: Tetrofosmin • cardiac metabolism • nitrate • left ventricular dysfunction Baseline/Postnitrate Tetrofosmin SPECT for Myocardial Viability Assessment in Patients with Postischemic Severe Left Ventricular Dysfunction: New Evidence from MRIAssuero Giorgetti, MD; Alessandro Pingitore, MD, PhD; Brunella Favilli, MSc; Annette Kusch, RT; Massimo Lombardi, MD; and Paolo Marzullo, MD The aim of this study was to compare 99mTc-tetrofosmin SPECT with contrast-enhanced MRI (ceMRI), a new direct sign of myocardial fibrosis. Methods: We studied 21 patients (age, 60 11 y;19 male) with previous myocardial infarction and severe left ventricular dysfunction (ceMRI EF, 29%6%). All patients underwent resting and postnitrate (intravenous isosorbide dinitrate) 99mTctetrofosmin gated SPECT as well as ceMRI. Scintigraphic analysis was performed using quantitative perfusion SPECT (QPS), providing the percentage radiotracer uptake and defect severity in a 20-segment model. Hyperenhancement was defined by the increase of ceMRI signal intensity 20 min after intravenous injection of gadolinium–diethylenetriaminepentaacetic acid and its regional extension as the percentage of the total segment area. Results: In ceMRI dysfunctional segments, the correlation between the extent of hyperenhancement and both 99mTc-tetrofosmin uptake and defect severity was significantly better after nitrate administration rather than at rest (P < 0.0001). Using a ceMRI cutoff below 40%, 102 of 196 (52%) segments were viable, whereas 94 (48%) segments were not viable. According to receiver-operating characteristic curve analysis, diagnostic accuracies were higher for postnitrate 99mTc-tetrofosmin uptake as well as perfusion defect severity than using resting data (0.84 vs. 0.71, P<0.001; 0.89 vs. 0.76, P<0.001, respectively). Conclusion: After nitrate administration, 99mTc-tetrofosmin uptake and perfusion defect severity were closely related to ceMRI, demonstrating, in vivo, the existence of an inverse correlation between the transmural distribution of fibrosis and tracer delivery to the myocardium. Key Words: myocardial viability; gated SPECT; contrast-enhanced MRI; nitrates J Nucl Med 2005; 46:1285–1293 Ïî-ìîåìó àáñòðàêòû îáîèõ æóðíàëîâ äîëæíû áûòü â ñâîáîäíîì äîñòóïå. Áûòü ìîæåò Âû íàéäåòå è ÷òî-íèáóäü ïîíîâåé. Ñ óâàæåíèåì ÎÅÍ. |