Ebook Diagnostic imaging (7/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Diagnostic imaging (7/E): Part 2
Ebook Diagnostic imaging (7/E): Part 2
8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2 examinations. Magnetic resonance imaging (MRT1. arteriography and studies re-quữing catheterization or direct puncture of the collecting systems arc limited to selected patients. Fluorodcoxyglu-cosc positron emission tomography (FDG-PET) CT is still under investigation as an imaging tool in the uri Ebook Diagnostic imaging (7/E): Part 2nary tract, as there are currently several limitations due to excretion of the tracer in the renal tract and poor uptake in many urological malignanciEbook Diagnostic imaging (7/E): Part 2
es.ultrasound. Cl and MR1 are essentially used for anatomical information: the functional information they provide is limited. The converse is true of8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2oundUltrasound is the first line investigation in most patients, providing anatomical information without requiring ionizing radiation or the use of intravenous contrast medium. The following arc rhe main uses of ultrasound:•To investigate patients with symptoms thought to arise from the urinary tra Ebook Diagnostic imaging (7/E): Part 2ct.•To demonstrate the size of the kidneys and exclude hydronephrosis in patients with renal failure.•To diagnose hydronephrosis, renal tumours, absceEbook Diagnostic imaging (7/E): Part 2
sses and cysts including polycystic disease.•To assess and follow-up renal size and scarring in children with urinary tract infections.•lo assess the 8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2 known as rhe central echo complex (the renal sinus), eon-sislmg of the pelvicahceal system, together with the surrounding fill and renal blood vessels (rig. 8.1). In most instances, rhe normal pclvicaliccal system is nor visible within rhe renal sinus. The renal cortex generates homogeneous echoes Ebook Diagnostic imaging (7/E): Part 2that are of equal reflec tivity or less reflective than those of the adjacent liver or spleen, and rhe renal pyramids arc seen as triangular hypocchoiEbook Diagnostic imaging (7/E): Part 2
c areas adjacent to the renal sinus. During the first 2 months of life, cortical echoes are relatively more prominent and the renal pyramids arc dispr8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2ximal in the young adult. There may be a difference between the two kidneys, normally of less than 1.5cm. A kidney with a bifid collecting system is usually 1-2cm larger than a kidney with a single pelvicaliceal system. Minor changes in size occur in many conditions (Tables 8.1 and 8.2).Diagwnc Imag Ebook Diagnostic imaging (7/E): Part 2ing. Seventh Edition Andren Rockall. Andrew Hatriek, Peter Armstrong, and Martin Waatie. c 2013 A. Rockall. A. H Strick. p. Armstrong. M. Wai tie. PubEbook Diagnostic imaging (7/E): Part 2
lished 2013 by John Wiley & Sons. Ltd.223Urinary TractTable 8.2 Conditions associated with enlarged kidneysDiagnosisImaging•í/wđ)í unilateralCompensat8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2ateralRenal mass Hydronephrosis I.ymphomatous infiltrationMass is seen Visible distension of the renal collecting systems May show obvious masses: the kidneys may. however, be large but otherwise unremarkableAlways bilateralRenal V ein thrombosis Polycystic disease Acute glomerulonephritis Amyloidos Ebook Diagnostic imaging (7/E): Part 2isNo Doppler signal is visible iu the renal vein and thrombus may be evident Characfenstic imaging appearance (sec Fig. 8.S2) Non-specific enlargementEbook Diagnostic imaging (7/E): Part 2
Non-specific culaigciucul (rare)Fig. 8.2 Normal ultrasound of the full bladder (B). Note the smooth thin bladder wall. The vagina lies posteriorly (a8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide Ebook Diagnostic imaging (7/E): Part 2 solutions of organically bound iodine. A large volume (e.g. 100 mL) is injected intravenously and is carried tn the bloodBox 8.1 Main indications for urogiaph}Intravenous orography or CT orography•When detailed demonstration of the pelvicaliceal system and ureters are required•In suspected ureteric Ebook Diagnostic imaging (7/E): Part 2 injury, e.g. following pelvic surgery or trauma•Assessment of acute ureteric colicCT urography•Investigation of renal calculi•Investigation of haematEbook Diagnostic imaging (7/E): Part 2
uria•Characterization of a renal mass8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclide 8Urinary Tractrhe four basic examinations of Ike urinary tract are ultrasound. intravenous urography (1VU). computed tomography (CT) and radionuclideGọi ngay
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