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.
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 ...
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...
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...
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.
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
CONCLUSION: We performed a validation of CTVI using clinically available 4DCT and Technegas V/Q-SPECT for 11 lung cancer patients. The results reinforce earlier findings that the spatial accuracy of CTVI exhibits significant inter-patient and inter-method variability. We propose that the most likely factor affecting CTVI accuracy was poor image quality of clinical 4DCT. This article is protected by copyright. All rights reserved. PMID: 28477378 [PubMed - as supplied by publisher]
CONCLUSIONS: Our results suggest that DIBH and conformal cardiac blocking for patients receiving tangential RT for left-sided breast cancer is an effective means to avoid early RT-associated cardiac perfusion defects. PMID: 28333011 [PubMed - in process]
To evaluate early cardiac single photon computed tomography (SPECT) findings after left breast/chest wall postoperative radiation therapy (RT) in the setting of deep inspiration breath hold (DIBH).
To quantify lung perfusion changes after breast/chest wall radiation therapy (RT) using pre- and post-RT single photon emission computed tomography/computed tomography (SPECT/CT) attenuation-corrected perfusion scans; and correlate decreased perfusion with adjuvant RT dose for breast cancer in a prospective clinical trial.
Conditions: Hepatocellular Carcinoma; Intrahepatic Cholangiocarcinoma; Stage IVA Liver Cancer; Stage IVB Liver Cancer Interventions: Procedure: Computed Tomography; Procedure: Single Photon Emission Computed Tomography; Radiation: Technetium Tc-99m Sulfur Colloid Sponsors: University of Washington; National Cancer Institute (NCI) Not yet recruiting - verified August 2016