Philips Medical Systems (Cleveland) Inc - Precedence 6 , Griffin SPECT/CT Imaging System - Class 2 Recall

Precedence 6 Model # 882351 Product Usage: Precedence (cleared as Griffin) is an imaging system combining the acquisition of single photon nuclear medicine images and images from an x-ray computed tomography system. Precedence may produce non-attenuation corrected and attenuation corrected images of the distribution of radiopharmaceuticals in the body as well as x-ray transmission images. The CT transmission data may be used to produce attenuation corrected nuclear medicine images. The nuclear medicine images and the CT images may be registered and displayed in a fused format (overlaid in the same orientation) to provide combined single photon and anatomical data for anatomical localization of the nuclear medicine data. Precedence may be used either as a separate single photon system, a separate CT system or as a combined CT and single photon system. The nuclear medicine and CT images may be transferred to other systems such as a radiation therapy planning system. The Precedence Imaging System should only be used by trained healthcare professionals.
Source: Medical Device Recalls - Category: Medical Devices Source Type: alerts

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Conclusions The PLS agreement was sensitive to the 90Y lung background correction ROI, potentially explaining a previously published controversy. The mean activity and absorbed dose agreement for the metastatic lesions was poorer than the healthy liver volumes studied here.
Source: Nuclear Medicine Communications - Category: Nuclear Medicine Tags: Original Articles Source Type: research
ConclusionsWhen combined with chemotherapy, SIRT is highly effective, with a TD  >  158Gy. Tolerance was good except for the few patients with cirrhosis or Child-Pugh status ≥A6, who exhibited some liver toxicity. Prospective studies are warranted to confirm.
Source: European Journal of Nuclear Medicine and Molecular Imaging - Category: Nuclear Medicine Source Type: research
Abstract PURPOSE: Although inverse-planned intensity modulated radiotherapy (IMRT) and deep inspiration breath hold (DIBH) may allow for more conformal dose distributions, it is unknown whether using these technologies reduces cardiac or pulmonary toxicity of breast radiotherapy. METHODS AND MATERIALS: A randomized controlled trial compared IMRT-DIBH versus standard, free-breathing, forward-planned, three-dimensional conformal radiotherapy in patients with left-sided, node-positive breast cancer in whom the internal mammary nodal region was targeted. Endpoints included dosimetric parameters and changes in pul...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Int J Radiat Oncol Biol Phys Source Type: research
Selective internal radiation therapy using 90Y spheres is a treatment option for patients with primary or secondary liver cancer. To avoid complications, screening using 99mTc macroaggregated albumin is performed to identify lung shunting and extrahepatic depositions. For the latter, deposition after the anterior abdominal wall is frequently attributed to a patent falciform artery, although the vessel itself is rarely visible on SPECT/CT scans. We demonstrate that retrospective SPECT/MRI fusion clearly attributes the nuclide accumulation to a patent falciform artery. During selective internal radiation therapy, ice packs w...
Source: Clinical Nuclear Medicine - Category: Nuclear Medicine Tags: Interesting Images Source Type: research
Conclusion: Nonspecific respiratory symptoms should raise concern for PH and diffuse PEMH in patients with advanced-stage MF. Combined Tc-99m SC BM scintigraphy and SPECT/CT is a promising noninvasive imaging tool to diagnose this rare clinical entity. PMID: 29884685 [PubMed - as supplied by publisher]
Source: Journal of Nuclear Medicine Technology - Category: Nuclear Medicine Tags: J Nucl Med Technol Source Type: research
Precedence 16 Model # 882350 Product Usage: Precedence (cleared as Griffin) is an imaging system combining the acquisition of single photon nuclear medicine images and images from an x-ray computed tomography system. Precedence may produce non-attenuation corrected and attenuation corrected images of the distribution of radiopharmaceuticals in the body as well as x-ray transmission images. The CT transmission data may be used to produce attenuation corrected nuclear medicine images. The nuclear medicine images and the CT images may be registered and displayed in a fused format (overlaid in the same orientation) to provide ...
Source: Medical Device Recalls - Category: Medical Devices Source Type: alerts
Rationale: The spine is the most common site of bone metastases due to thyroid cancer; however, spinal cord compression as a complication of metastatic thyroid cancer is very rare. Patient concerns: A 48-year-old female patient was presented to the Neurosurgical Department, complaining of progressive back neck pain with bilateral upper extremities numbness and weakness for 4 months. Diagnosis: Imaging studies revealed osteolytic destruction in bodies and accessories of the second and third cervical vertebrae with a huge soft-tissue mass compressing spinal cord and causing swelling. After the neurosurgical decompression s...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Purpose: A semiquantitative assessment of hepatic reticuloendothelial system function using colloidal particles scintigraphy has been proposed previously as a surrogate for liver function evaluation. In this article, we present an updated method for the overall assessment of technetium-99m (99mTc)-sulfur colloid (SC) biodistribution that combines information from planar and attenuation-corrected 99mTc-SC single-photon emission computed tomography (SPECT) images. The imaging protocol described here was developed as an easy-to-implement method to assess overall and regional liver function changes associated with chronic live...
Source: Nuclear Medicine Communications - Category: Nuclear Medicine Tags: Original Articles Source Type: research
Conclusion: With each therapy, we have improved communication across our multi-disciplinary team. These improvements have been incorporated into a Sir-Sphere administration check list. Other improvements have been made to post treatment PET-CT image acquisition techniques.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Technologist Posters Source Type: research
Conclusion: Diffuse PEMH usually accompanies with liver and spleen extramedullary hematopoiesis in advanced myelofibrosis. Non-specific respiratory symptom and pulmonary hypertension should raise concern of this etiology. Tc-99m SC bone marrow scintigraphy with combined SPECT-CT or chest CT is essential in diagnosis of this disorder and could avoid unnecessary biopsy procedure. Although no direct benefit for survival, palliative whole lung low dose radiation therapy could improve patient’s life quality without radiation induced complication. Research Support: None
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Infectious Disease Hematology Source Type: research
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