Imaging Studies in Metastatic Urogenital Cancer Patients Undergoing Systemic Therapy: Recommendations of a Multidisciplinary Consensus Meeting of the Association of Urological Oncology of the German Cancer Society
ABSTRACT Imaging studies are an integral and important diagnostic modality to stage, to monitor and follow-up patients with metastatic urogenital cancer. The currently available guidelines on diagnosis and treatment of urogenital cancer do not provide the clinician with evidence-based recommendations for daily practice.
To develop scientifically valid recommendations with regard to the most appropriate imaging technique and the most useful time interval in metastatic urogenital cancer patients undergoing systemic therapy.
A systematic literature review was performed searching MedLine, Embase and Web of Science databases using the terms prostate, renal cell, bladder and testis cancer in combination with the variables lymph node, lung, liver, bone metastases, chemotherapy and molecular therapy, and the search terms computed tomography, magnetic resonance imaging and positron emission tomography were applied. A total of 11,834 records were retrieved from all databases. The panel reviewed the records to identify articles with the highest level of evidence using the recommendation of the US Agency for Health Care Policy and Research.
Contrast-enhanced computed tomography remains the standard imaging technique for monitoring of pulmonary, hepatic and lymph node metastases. Bone scintigraphy is still the most widely used imaging technique for the detection and follow-up of osseous lesions. For clinical trials it might be replaced by either PET-CT or MRI of the skeletal axis. Response assessment for patients treated with cytotoxic regime is best performed by the RECIST/WHO criteria; treatment response to molecular triggered therapy is best assessed by CT evaluating decrease in tumor size and density. Cross-sectional imaging studies for response assessment might be obtained after each 2 cycles of systemic therapy to early stratify responders from non-responders.
Conference Paper: A flexible space-time turbo coding scheme[Show abstract] [Hide abstract]
ABSTRACT: Space-time coding is a promising technique for high data-rate wireless communications. We propose a flexible space-time turbo coding scheme based on the serial concatenation of turbo TCM and generalized delay diversity codes. It can achieve full diversity advantage for any number of transmit antennas with various transmission rates. Simulation results show that our codes can perform within 1.5 dB to 2 dB of outage capacity on quasi-static fading channelsInfo-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on; 02/2001
Article: Evolution of urological imaging[Show abstract] [Hide abstract]
ABSTRACT: The evolution of urological imaging has had a major impact on the diagnosis and treatment of urological diseases since the discovery of the X-ray by Roentgen in 1895. Early developments included plain films of the abdomen, retrograde urographic techniques, development of contrast media, excretory urography, renal mass puncture, renal angiography, cystography and nuclear medicine procedures. These procedures led to the maturation of the specialties of diagnostic radiology and urology, and the development of the subspecialties of pediatric urology and urological radiology during the first seven decades of the 20th century. Subsequently, many imaging advances have occurred leading to changes in diagnosis and management of urological patients. Ultrasound and cross-sectional imaging technologies (computed tomography and magnetic resonance imaging) are increasingly applied in urological evaluation, treatment and surveillance. Current developments include dual energy computed tomography, positron emission tomography computed tomography, renal donor and renal transplant imaging, prostate magnetic resonance imaging, and microbubble contrast enhanced ultrasound. Imaging advances will continue. It is the responsibility of all physicians to assess the advantages of new developments while weighing those advantages against the additional radiation exposure and the costs associated with new procedures.International Journal of Urology 02/2011; 18(2):102-12. DOI:10.1111/j.1442-2042.2010.02677.x · 1.80 Impact Factor
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ABSTRACT: Bisphosphonates relieve metastatic bone pain, prevent, reduce and delay skeletal morbidity in metastatic bone disease and are recommended in European guidelines but safety concerns, specifically renal dysfunction and osteonecrosis of the jaw, necessitate specific precautions when administered intravenously. Pan-European guidance for nurses at the forefront of patient-focussed cancer care is required to minimise patient risk. A panel of urology and oncology nurses from seven European countries collaborated to decide what constituted best practice for bisphosphonate administration when indicated for prevention of skeletal-related events in patients with advanced urological malignancies. The panel agreed that urology, oncology, and home-care nurses who are at the forefront of patient-focussed care are well placed to ensure best practice is followed but across Europe nurses have insufficient training on bisphosphonate administration for urological cancers. Based on extensive clinical experience in administering bisphosphonates the panel propose best practice for identifying those patients who could benefit, for example those with bone pain or at risk of fracture, and for minimising risk of adverse events by checking renal function, adjusting dosing, ensuring adequate hydration, and regularly assessing dental health, as well as providing information and support. Sharing this best practice across Europe could assist nurses who care for patients with urological cancers and bone metastases or indeed those caring for cancer patients in general, to take the lead, or at least be aware of what is the best practice that helps to ensure effective and safe IV bisphosphonates administration to patients under their care.European journal of oncology nursing: the official journal of European Oncology Nursing Society 03/2011; 16(1):42-53. DOI:10.1016/j.ejon.2011.02.006 · 1.79 Impact Factor