Paper Search Console

Home Search Page About Contact

Journal Title

Title of Journal: Eur Radiol

Search In Journal Title:

Abbravation: European Radiology

Search In Journal Abbravation:

Publisher

Springer-Verlag

Search In Publisher:

DOI

10.1007/s00339-010-5728-7

Search In DOI:

ISSN

1432-1084

Search In ISSN:
Search In Title Of Papers:

Image quality in CT perfusion imaging of the brain

Authors: Matthias König Eva Bültmann Lucas BodeSchnurbus Dirk Koenen Eckhart Mielke Lothar Heuser
Publish Date: 2006/05/16
Volume: 17, Issue: 1, Pages: 39-47
PDF Link

Abstract

The purpose of this study was to evaluate the impact of various iodine contrast concentrations on image quality in computed tomography CT perfusion studies Twentyone patients with suspicion of cerebral ischemia underwent perfusion CT using two different iodine contrast concentrations 11 patients received iomeprol 300 iodine concentration 300 mg/ml while ten received the same volume of iomeprol 400 iodine concentration 400 mg/ml Scan parameters were kept constant for both groups Maps of cerebral blood flow CBF cerebral blood volume CBV and time to peak TTP were calculated from two adjacent slices Quantitative comparisons were based on measurements of the maximum enhancement Hounsfield units HU and signaltonoise index SNI on CBF CBV and TTP images Determinations of greytowhitematter delineation for each iodine concentration were performed by two blinded readers Only data from the nonischemic hemispheres were considered Both maximum enhancement and SNI values were higher after iomeprol 400 resulting in significantly better image quality in areas of low perfusion No noteworthy differences were found for normal values of CBF CBV and TTP Qualitative assessment of grey/white matter contrast on CBF and CBV maps revealed better performance for iomeprol 400 For brain perfusion studies highly concentrated contrast media such as iomeprol 400 is superior to iomeprol 300

Keywords:

References

.
Search In Abstract Of Papers:
Other Papers In This Journal:
  1. Computed tomography of the inner ear: size of anatomical structures in the normal temporal bone and in the temporal bone of patients with Menière’s disease
  2. Effectiveness of ultrasonographic evaluation of the cranial sutures in children with suspected craniosynostosis
  3. Effect of radiologists’ experience on breast cancer detection and localization using digital breast tomosynthesis
  4. CT virtual reality in the preoperative workup of malunited distal radius fractures: preliminary results
  5. Molecular imaging in oncology: the acceptance of PET/CT and the emergence of MR/PET imaging
  6. Sub-milliSievert (sub-mSv) CT colonography: a prospective comparison of image quality and polyp conspicuity at reduced-dose versus standard-dose imaging
  7. Intravoxel incoherent motion MRI: emerging applications for nasopharyngeal carcinoma at the primary site
  8. Radiation exposure of multi-row detector spiral computed tomography of the pulmonary arteries: comparison with digital subtraction pulmonary angiography
  9. Three-dimensional C-arm CT-guided transjugular intrahepatic portosystemic shunt placement: Feasibility, technical success and procedural time
  10. Planning transarterial radioembolization of colorectal liver metastases with Yttrium 90 microspheres: evaluation of a sequential diagnostic approach using radiologic and nuclear medicine imaging techniques
  11. Resting-state fMRI revealed different brain activities responding to valproic acid and levetiracetam in benign epilepsy with central-temporal spikes
  12. Reassessment of CT images to improve diagnostic accuracy in patients with suspected acute appendicitis and an equivocal preoperative CT interpretation
  13. Real-time MR with TrueFISP for the detection of acute pulmonary embolism: initial clinical experience
  14. Spectroscopic (multi-energy) CT distinguishes iodine and barium contrast material in MICE
  15. Magnetic Resonance Parkinsonism Index: diagnostic accuracy of a fully automated algorithm in comparison with the manual measurement in a large Italian multicentre study in patients with progressive supranuclear palsy
  16. Diffusion MRI and spectroscopy in Rasmussen's encephalitis
  17. The impact of digital mammography on screening a young cohort of women for breast cancer in an urban specialist breast unit
  18. Structural brain alterations of Down’s syndrome in early childhood evaluation by DTI and volumetric analyses
  19. Microbubbles assist goat liver ablation by high intensity focused ultrasound
  20. Gd-EOB-DTPA-enhanced MRI for monitoring future liver remnant function after portal vein embolization and extended hemihepatectomy: A prospective trial
  21. Use of ultrasound-guided axillary node core biopsy in staging of early breast cancer
  22. Value of MRI in patients with a clinical suspicion of acute myocarditis
  23. Impact of iterative reconstruction on CNR and SNR in dynamic myocardial perfusion imaging in an animal model
  24. Facilitating coronary artery evaluation in MDCT using a 3D automatic vessel segmentation tool
  25. Quantitative imaging of excised osteoarthritic cartilage using spectral CT
  26. Quantification of myocardial blood flow using dynamic 320-row multi-detector CT as compared with 15 O-H 2 O PET
  27. Accuracy of contrast-enhanced cine-MR sequences in the assessment of left ventricular function: comparison with precontrast cine-MR sequences. Results of a bicentric study
  28. Recurrence of a primary malignant giant cell tumour of bone 14 years after initial surgery
  29. Multi-detector CT urography: effect of oral hydration and contrast medium volume on renal parenchymal enhancement and urinary tract opacification—a quantitative and qualitative analysis
  30. Radiofrequency thermal ablation with expandable needle of focal liver malignancies: complication report
  31. Intravascular ultrasound for evaluation of portal venous involvement in pancreatic cancer
  32. European and North American lung cancer screening experience and implications for pulmonary nodule management
  33. Characterization of liver hemangiomas with pulse inversion harmonic imaging
  34. Diffusion-weighted MR imaging for the differentiation of malignant from benign strictures in the periampullary region
  35. Comparison of MR imaging findings in paediatric and adult patients with acute mastoiditis and incidental intramastoid bright signal on T2-weighted images
  36. The MRI features of histologically proven ovarian cystadenofibromas—an assessment of the morphological and enhancement patterns
  37. Transarterial chemoembolization alone and in combination with other therapies: a comparative study in an animal HCC model
  38. Transarterial chemoembolization alone and in combination with other therapies: a comparative study in an animal HCC model
  39. Amide Proton Transfer (APT) MR imaging and Magnetization Transfer (MT) MR imaging of pediatric brain development
  40. Usefulness of high-b-value diffusion-weighted imaging in acute cerebral infarction
  41. Unusual presentation of a pancreatic insulinoma in helical CT and dynamic contrast-enhanced MR imaging: case report
  42. A tamponade leading to death after radiofrequency ablation of hepatocellular carcinoma
  43. Isolated brain metastases of osteosarcoma in a patient presenting with a patent foramen ovale
  44. CT colonography with fecal tagging after incomplete colonoscopy
  45. Combined PET/CT with iodine-124 in diagnosis of spread metastatic thyroid carcinoma: a case report
  46. Colorectal liver metastases: regional chemotherapy via transarterial chemoembolization (TACE) and hepatic chemoperfusion: an update
  47. Detection and grading of dAVF: prospects and limitations of 3T MRI
  48. Usefulness of multifunctional gastrointestinal coil catheter for colorectal stent placement
  49. Primary lung cancer: treatment with radio-frequency thermal ablation
  50. The probability of malignancy in small pulmonary nodules coexisting with potentially operable lung cancer detected by CT
  51. Prediction of cervical lymph node metastasis in patients with papillary thyroid cancer using combined conventional ultrasound, strain elastography, and acoustic radiation force impulse (ARFI) elastography
  52. Feasibility study of computed tomography colonography using limited bowel preparation at normal and low-dose levels study
  53. Cartilage lesions of the glenohumeral joint: diagnostic effectiveness of multidetector spiral CT arthrography and comparison with arthroscopy
  54. 2D and 3D T2-weighted MR sequences for the assessment of neurovascular bundle changes after nerve-sparing radical retropubic prostatectomy with erectile function correlation
  55. Dynamic contrast-enhanced CT imaging of hepatocellular carcinoma in cirrhosis: feasibility of a prolonged dual-phase imaging protocol with tracer kinetics modeling
  56. Delay before the hepatocyte phase of Gd-EOB-DTPA-enhanced MR imaging: Is it possible to shorten the examination time?
  57. CT colonography and cost-effectiveness
  58. Incidence of bowel wall oedema on computed tomography exams and association with diarrhoea in renal cell carcinoma patients treated with sunitinib
  59. Low-dose CT of the lung: potential value of iterative reconstructions
  60. Systolic prospectively ECG-triggered dual-source CT angiography for evaluation of the coronary arteries in heart transplant recipients
  61. Reduced white matter integrity and cognitive deficits in maintenance hemodialysis ESRD patients: A diffusion-tensor study
  62. CT colonography: effect of experience and training on reader performance
  63. Recent advances in medical physics
  64. Relation of the ischaemic substrate to left ventricular remodelling by cardiac magnetic resonance at 1.5 T in rabbits
  65. Consequences of digital mammography in population-based breast cancer screening: initial changes and long-term impact on referral rates
  66. Percutaneous radiofrequency ablation of hepatocellular carcinoma: analysis of 80 patients treated with two consecutive sessions
  67. Anomalous origin of the coronary artery from the wrong coronary sinus evaluated with computed tomography: “High-risk” anatomy and its clinical relevance
  68. Quantitative analysis of diffusion-weighted magnetic resonance imaging in malignant breast lesions using different b value combinations
  69. MR cholangiopancreatography: technique, potential indications, and diagnostic features of benign, postoperative, and malignant conditions
  70. Flat detectors and their clinical applications
  71. Traumatic injuries: imaging of pelvic fractures
  72. Dual energy MDCT assessment of renal lesions: an overview
  73. Adrenal masses falsely diagnosed as adenomas on unenhanced and delayed contrast-enhanced computed tomography: Pathological correlation
  74. MRI features of neurodegenerative Langerhans cell histiocytosis
  75. Colonic arteriovenous malformation in a child misinterpreted as an idiopathic colonic varicosis on angiography: remarks on current classification of childhood intestinal vascular malformations
  76. Radiation doses to operators performing transjugular intrahepatic portosystemic shunt using a flat-panel detector-based system and ultrasound guidance for portal vein targeting
  77. In-vivo monitoring of acute DSS-Colitis using Colonoscopy, high resolution Ultrasound and bench-top Magnetic Resonance Imaging in Mice
  78. A meta-analysis of diffusion-weighted and gadoxetic acid-enhanced MR imaging for the detection of liver metastases
  79. Comparison of low dose with standard dose abdominal/pelvic multidetector CT in patients with stage 1 testicular cancer under surveillance
  80. Contrast-enhanced spectral mammography in patients referred from the breast cancer screening programme
  81. Surface lesions of the bones of the hand
  82. Higher lesion conspicuity for SENSE dynamic MRI in detecting hypervascular hepatocellular carcinoma: analysis through the measurements of liver SNR and lesion–liver CNR comparison with conventional dynamic MRI
  83. European Radiology 2008: a new era
  84. Polyp measurement based on CT colonography and colonoscopy: variability and systematic differences
  85. Can positron emission mammography help to identify clinically significant breast cancer in women with suspicious calcifications on mammography?
  86. Long-term follow-up of non-calcified pulmonary nodules (<10 mm) identified during low-dose CT screening for lung cancer
  87. Quantitative magnetic resonance temperature mapping for real-time monitoring of radiofrequency ablation of the liver: an ex vivo study
  88. Fetal magnetic resonance imaging of the brain: technical considerations and normal brain development
  89. Carotid stenosis degree in CT angiography: assessment based on luminal area versus luminal diameter measurements
  90. MR imaging of renal cortical tumours: qualitative and quantitative chemical shift imaging parameters
  91. Whole-body magnetic resonance angiography of patients using a standard clinical scanner
  92. Safety and efficacy of radiological percutaneous jejunostomy for decompression of malignant small bowel obstruction
  93. MRI of normal anterior cruciate ligament (ACL) and reconstructed ACL: comparison of when the knee is extended with when the knee is flexed
  94. Uterine artery embolisation versus hysterectomy for leiomyomas: primary and 2-year follow-up results of a randomised prospective clinical trial
  95. CT-guided vertebroplasty in osteoprotic vertebral fractures: incidence of secondary fractures and impact of intradiscal cement leakages during follow-up
  96. MDCT of renal and mesenteric vessels
  97. Neglectable benefit of searching for incidental findings in the Dutch--Belgian lung cancer screening trial (NELSON) using low-dose multidetector CT
  98. Contrast-enhanced dynamic MR nephrography using the TurboFLASH navigator-gating technique in children
  99. Loss of vision: imaging the visual pathways
  100. 3D-black-blood 3T-MRI for the diagnosis of thoracic large vessel vasculitis: A feasibility study
  101. Radiological features of healing in newborn clavicular fractures
  102. The effect of computer-aided detection markers on visual search and reader performance during concurrent reading of CT colonography
  103. Catheter-based intraluminal optical coherence tomography (OCT) of the ureter: ex-vivo correlation with histology in porcine specimens
  104. The appearances of oesophageal carcinoma demonstrated on high-resolution, T2-weighted MRI, with histopathological correlation
  105. Optimization of imaging before pulmonary vein isolation by radiofrequency ablation: breath-held ungated versus ECG/breath-gated MRA
  106. Current radiological management of intussusception in children
  107. Bleeding hepatic pseudoaneurysm complicating percutaneous liver biopsy with interventional treatment options
  108. Nasolacrimal system: evaluation with gadolinium-enhanced MR dacryocystography with a three-dimensional fast spoiled gradient-recalled technique
  109. Prenatal MR imaging features of isolated cerebellar haemorrhagic lesions
  110. 64-slice multidetector coronary CT angiography: in vitro evaluation of 68 different stents
  111. Dynamic MR imaging of osteoid osteomas: correlation of semiquantitative and quantitative perfusion parameters with patient symptoms and treatment outcome
  112. CT measurement of breast glandular tissue and its association with testicular cancer
  113. Shear wave elastography of thyroid nodules in routine clinical practice: preliminary observations and utility for detecting malignancy
  114. Inflammatory pseudotumor of the liver in a patient with rectal cancer: a case report
  115. 3D Quantitative tumour burden analysis in patients with hepatocellular carcinoma before TACE: comparing single-lesion vs. multi-lesion imaging biomarkers as predictors of patient survival
  116. Radiological contrast media in the breastfeeding woman: a position paper of the Italian Society of Radiology (SIRM), the Italian Society of Paediatrics (SIP), the Italian Society of Neonatology (SIN) and the Task Force on Breastfeeding, Ministry of Health, Italy
  117. Multimodality imaging assessment of the deleterious role of the intraluminal thrombus on the growth of abdominal aortic aneurysm in a rat model
  118. Comparison of dynamic contrast-enhanced MRI with WHO tumor grading for gliomas
  119. How accurate is helical CT volumetric assessment in renal tumors?
Search Result: