• Diffuse lung uptake in stress myocardial perfusion ...

    We present an interesting image of diffuse lung uptake in thallium201 stress Myocardial perfusion scintigraphy (MPS) in a patient with sarcoidosis with no underlying perfusion defect and/or left ventricular (LV) dysfunction. A 61yearold male with history of sarcoidosis and hypertension of 3 years duration presented with dyspnea on exertion ...

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  • Thallium201: An Agent for Myocardial Perfusion and ...

    Increased lung uptake of Thallium201 can occur on the initial images immediately after exercise. This is an important marker of exercise induced LV dysfunction and can be correlated with an abnormally increased ED left ventricular pressure and capillary wedge pressure. This highly abnormal finding is most often seen in patients with significant

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  • Thallium201 as a Positive Indicator for Lung Neoplasms ...

    Thallium201 was given to 71 patients with various pulmonary diseases. Positive uptake was noted in primary malignant neoplasms and also in 6 cases of Hodgkin's lymphoma. No uptake was seen in pulm...

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  • Thallium‐201 single photon emission computed tomography as ...

    Nov 15, 2000· Thallium‐201 (Tl‐201) scintigraphy is useful in evaluating not only ischemic heart disease 1, 2 but also a variety of tumors (head, neck, bone, soft tissue, and lung). 36 In benign tumors, Tl‐201 shows either no or reduced accumulation on the delayed scan. Malignant tumors accumulated Tl‐201 on both the early and delayed scans. 3, 4, 7, 8 In malignant tumors, the grade of accumulation ...

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  • Lungheart ratio in stress Thallium myocardial perfusion ...

    The authors present an example of normal stress Tl 201 myocardial perfusion imaging with an increased lungheart ratio of Tl 201 uptake. AB Increased Tl201 lungheart ratio after treadmill exercise or pharmacologic stress is an indicator of left ventricular dysfunction.

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  • Thallium201 lung uptake at rest and diastolic function in ...

    The amount of thallium201 lung uptake was quantified as the ratio (L/H) between the activity in a left lung region of interest (L) and that observed in the left ventricle (H). From mitral Doppler, early (E) and late (A) filling velocities, the E/A ratio and the deceleration time of early filling (DecT) were calculated.

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  • Thallium 201 Lung

    Thallium 201 Lung Thallium201chloride and technetium99m … We compared technetium99mMIBI (Tc99m MIBI) with thallium201chloride (Tl201) SPECT imaging in patients with lung carcinoma.

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  • Thallium201 lung uptake and peak treadmill exercise first ...

    Feb 01, 1995· Increased thallium201 lung uptake immediately after exercise has been shown (1) to be a marker for extensive coronary artery disease, (2) to correlate with low rest and exercise left ventricular ejection fraction by supine gated blood pool scintigraphy, and (3) to be a powerful independent predictor of future cardiac events.

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  • Relevance of Increased Lung Thallium Uptake on Stress ...

    This study sought to determine the significance of abnormal thallium201 (Tl201) lung uptake on stress imaging in the absence of perfusion abnormalities. Background. Abnormal Tl201 lung uptake, represented by an increased lung/heart ratio (LHR), on stress imaging is a marker of stressinduced left ventricular dysfunction and poor prognosis in ...

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  • Comparison of Thallium201 and Gallium67 Citrate ...

    Gallium is presently used in the diagnosis of inflammatory, granulomatous, and neoplastic lung disease despite its many logistical problems. In contrast, thallium201 scintigraphy, which was initially developed for myocardial imaging, offers the principal advantage of immediate imaging and diagnosis although it had not been investigated previously for use in pulmonary disease.

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  • Lung uptake of Thallium201 during atrial pacing stress ...

    Lung activity was expressed as a percent of peak myocardial counts on the anterior image (lung Thallium201 index). The influence of rest, peak, and postpacing hemodynamic parameters, including pulmonary capillary wedge pressure (PCWP), cardiac index (CI), heart rate, and aortic pressure on lung Thallium201 index was examined using stepwise ...

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  • Thallium‐201‐chloride thyroid scintigraphy to evaluate ...

    The purpose of this study is to evaluate benign and/or malignant thyroid tumors with 201 TI thyroid scan. We studied 76 cases of histologically verified thyroid tumors, all seen as cold nodules on the 123 I thyroid scan. 201 TI thyroid scan was performed 5–15 minutes (early scan) and 3–5 hours (delayed scan) after intrayenous administration of – mCi of 201 TI.

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  • Chapter 20 Flashcards | Quizlet

    In which test is a radiopharmaceutical injected intravenously and traced within the vessels of the lung? a. chest xray of the lung b. CT scan of the thoracic cavity c. perfusion study of the lung d. ventilation scan of the lung ... What is thallium201? a. gamma camera b. contrast material c. fluorescent material d. radionuclide. d ...

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  • Increased lung uptake of thallium201 during exercise ...

    Aug 01, 1980· The presence of lung thallium201 activity was re lated to the findings at cardiac catheterization (Table III). Increased lung thallium activity was significantly associated with the severity of the coronary stenoses and the presence of multiple vessels having a stenosis of 50 percent or more. In patients with 2+ lung activity, the resting ...

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  • Thallium201 scintigraphy in the diagnosis and management ...

    The ability of predischarge quantitative exercise thallium201 (/sup 201/T1) scintigraphy to predict future cardiac events was evaluated prospectively in 140 consecutive patients with uncomplicated acute myocardial infarction; the results were compared with those of submaximal exercise treadmill testing and coronary angiography.

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  • Increased exercise thallium201 lung uptake: A noninvasive ...

    To determine the physiologic impact of twovessel coronary artery disease and its effect on prognosis, a series of clinical, angiographic, exercise and quantitative thallium201 (Tl201) imaging parameters were analyzed in 85 consecutive twovessel coronary artery disease patients followed for 52 ± 27 months after coronary angiography and Tl201 scintigraphy.

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