6533b836fe1ef96bd12a0b9b
RESEARCH PRODUCT
Bolus-enhanced renal spiral CT: technique, diagnostic value and drawbacks
Franz SchwedenHans-ulrich KauczorManfred ThelenHans H. SchildH. C. Schwickertsubject
AdultMalemedicine.medical_specialtyKidney CortexMedullary cavityKidneyRenal Artery Obstructionurologic and male genital diseasesRenal VeinsLesionKidney CalculiRenal ArteryBolus (medicine)VascularityPrecontrastmedicineHumansKidney PelvisRadiology Nuclear Medicine and imagingSpiral ctCarcinoma Renal CellAgedAged 80 and overKidney MedullaKidneybusiness.industryThrombosisGeneral MedicineKidney Diseases CysticMiddle AgedKidney NeoplasmsIopamidolRadiographic Image Enhancementmedicine.anatomical_structureFemaleKidney DiseasesRadiologymedicine.symptomTomography X-Ray ComputedbusinessRenal pelvisFollow-Up Studiesdescription
Abstract In addition to pre- and postcontrast renal CT scans, early bolus-enhanced spiral scans during demarcation of the corticomedullary junction were acquired in 85 patients. The diagnostic value and drawbacks of the three imaging series in the evaluation of renal disease were assessed. Renal calcifications and calculus disease detected at precontrast scans (18%) were obscured after contrast administration and excretion in most cases. In the detection of renal lesions bolus-enhanced spiral CT and delayed postcontrast scans had an identical diagnostic yield (94%). Bolus-enhanced spiral CT was superior in the assessment of lesion vascularity and vascular anatomy as well as opacification of renal arteries (95%) and veins (85%). Delayed postcontrast scans were indispensable to delineate medullary or parapelvic cysts as well as anatomic abnormalities or tumors of the renal pelvis (17% of all lesions). Routine renal CT of the kidneys should consist of precontrast images and delayed postcontrast spiral scans. Bolus-enhanced spiral scans are advised to assess lesion vascularity or renal veins.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-08-01 | European Journal of Radiology |