Diagnostic Imaging: Ultrasound by Anil T. Ahuja MBBS (Bom) MD (Bom) FRCR FHKCR FHKAM

By Anil T. Ahuja MBBS (Bom) MD (Bom) FRCR FHKCR FHKAM (Radiology), James F. Griffith MD MRCP FRCR, K. T. Wong MBChB FRCR, Gregory E. Antonio MD FRANZCR, Winnie C. W. Chu MBChB FRCR, Stella S. Y. Ho PhD RDMS, Shlok J. Lolge MD, Bhawan K. Paunipagar

This booklet was once written with you in brain, applying a hassle-free structure, succinct info and over 2500 ultrasound photographs. Correlative pictures utilizing different modalities also are incorporated for comparability and to permit a short and seamless transition among ultrasound and different modalities. The ebook is concentrated on supplying you a pragmatic reference to be used in a hectic perform. It presents proper details in bulleted shape, making it the suitable one-stop quickly reference for a scanning or reporting consultation. Ultrasound pictures of either universal and no more universal illnesses are supplied to assist in formulating a prognosis and appropriate differential diagnoses.

  • Covers the pinnacle imaging diagnoses in ultrasound, together with either universal and not more universal entities.
  • Provides exquisitely reproduced imaging examples for each diagnosis-plus concise, bulleted summaries of terminology · imaging findings · key evidence · differential analysis · pathology · scientific matters · a diagnostic record · and chosen references.
  • Includes an in depth photo gallery for every entity, depicting universal and version circumstances.
  • Offers a vibrant, full-color layout that makes the fabric effortless to learn.
  • Displays a ''thumbnail'' visible differential prognosis for every entity.

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O This makes relating a hepatic lesion to the surrounding anatomy difficult o CT and MR may be more useful when such problems with ultrasound arise • For imaging work-up of suspicious hepatic lesions o Ultrasound is good at locating the lesion and for monitoring progress o Real-time imaging capability of ultrasound allows accurate guided biopsy of lesion o Complimentary information of the lesion from CT and/or MR helps to reduce the need for biopsy o Intravenous ultrasound contrast agents are more sensitive in picking up subtle lesions and also demonstrate dynamic enhancing characteristics similar to CECT Imaging Protocols • Lesions detected by ultrasound should be further supplemented with color &/or power Doppler Transverse transabdominal ultrasound shows the ligamentum teres and related fissure ~ which separates segment 4b from 3.

Right) Oblique transabdominal ultrasound shows loops of small bowel with thickened walls floating within ascitic fluid 8:11. Mural edema may be due to portal hypertension or hypo-albuminemia. = =- (Left) Oblique transabdominal ultrasound shows chronic ascites in a cirrhotic patient. Note fibrin strands running through the fluid. (Right) Oblique transabdominal ultrasound shows splenomegaly (76 cm between 8:11) and splenic varices due to portal hypertension. = = (Left) Oblique transabdominal ultrasound shows recanalization of the paraumbilical vein which acts as a portosystemic collateral to compensate for portal hypertension.

Right) Transverse transabdominal ultrasound shows curvilinear calcification in an old hematoma and posterior acoustic shadowing 8lI. Note thin curvilinear appearance simulating duct/vessel. = = DIFFUSE MICROABSCESSES, Oblique transabdominal hypoechoic microabscess to gallbladder contents 8:1. = ultrasound shows a with echogenicity similar HEPATIC = Oblique transabdominal ultrasound shows a microabscess with a "target" sign of central echogenic inflammation and surrounding hypoechoic fibrosis. , 5 MHz) improves detection of small abscesses, this should be added to the examination in high risk patients ICLINICALISSUES I DIFFERENTIAL Presentation DIAGNOSIS • Most common signs/symptoms o Fever unresponsive to antibiotic o Abdominal pain o Deranged liver function Simple Cysts • Typical uniformly hypoechoic/anechoic content Necrotic Metastases • May also demonstrate the "target" sign (hypoechoic halo) • Mu]tip]e • Known primary tumor Lymphomatous Infiltration Treatment • Antifungal agents: Amphotericin 2.

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