Vol. 5, No. 1, 2002

Table of Contents


Digital Radiology: A Decade of Clinical Experience

W Hruby

Hong Kong J Radiol 2002;5:3-13

The world's first entirely digital radiology system was planned in 1988 and implemented in 1992 in the Danube Hospital of the Socio Medical Care Centre East in Vienna, Austria. An overview is provided of a decade's experience in digital radiology,


Chemoembolisation of Hepatic Tumours: Changes in Platelet Count, Haemoglobin, and Creatinine Postembolisation

PL Munk, SGF Ho, GM Legiehn, MJ Lee, DC Morris

Hong Kong J Radiol 2002;5:14-8

Objective: To determine the frequency and magnitude of decreases in renal function, haemoglobin levels, and platelet count after chemoembolisation in patients with liver tumours.

Materials and Methods: Eighteen patients with a mean age of 59 years (range, 37 to 78

Scattered Radiation Level During Computed Tomography Fluoroscopy

CB Chan, LK Chan, HS Lam

Hong Kong J Radiol 2002;5:19-23

Objective: To assess the scattered radiation dose to personnel during CT fluoroscopy using phantom measurements.

Materials and Methods: Scattered radiation levels (normalised by mA and scan time) were measured at different distances from the isocentre of the CT scanner with

Radiation Doses to Staff in a Nuclear Medicine Department

WY Ho, KK Wong, YL Leung, KC Cheng, FTH Ho

Hong Kong J Radiol 2002;5:24-8

Objectives: To measure external radiation doses and estimate internal radiation doses (due to the process of radionuclide injection) to staff members working in a nuclear medicine department over a 1-year period; to assess the possible radiation doses to staff members


Acute Dural Sinus Thrombosis—Computed Tomography and Magnetic Resonance Imaging Features

KY Lau, M Au-Yeung, TH Tsoi, DJ Roebuck, LTH Tan

Hong Kong J Radiol 2002;5:29-34

Dural sinus thrombosis is a diagnosis that is not commonly thought of in the first instance by radiologists and clinicians, especially when the clinical presentation is not specific. We describe the clinical presentation of three patients with acute thrombosis of

Bird's Nest Inferior Vena Cava Filter Thrombosis

KY Lau, JKW Chan, SW Pang, DJ Roebuck, LTH Tan

Hong Kong J Radiol 2002;5:35-8

We describe the case of a patient who died approximately 3 months after having had a jugular Bird’s nest inferior vena cava filter placed for prophylaxis of pulmonary embolism. Postmortem examination revealed inferior vena cava filter thrombus and thromboembolic occlusion

Chronic Thromboembolic Pulmonary Hypertension

K Wang, SSS Lo, KW Chan

Hong Kong J Radiol 2002;5:39-42

The characteristic imaging features of chronic thromboembolic pulmonary hypertension are described. This is a very rare disorder; prompt surgical treatment affords good results. The complementary use of the ventilation/perfusion scan and CT pulmonary angiogram in diagnosis, and exclusion of other

Iliofemoral Deep Vein Thrombosis Secondary to Venous Compression by a Massively Distended Bladder

D Liu, WC Torreggiani, PL Munk, S Ho, C Morris, G Legiehn

Hong Kong J Radiol 2002;5:43-6

A case of iliofemoral deep vein thrombosis secondary to venous compression by a massively distended bladder is reported. Ascending venography was valuable in identifying the primary cause of venous obstruction, as well as guiding thrombolysis.

Lymphoepithelioma-like Carcinoma of the Lung

CS Cheng, WH Yeung, WK Kwok, WH Kwan

Hong Kong J Radiol 2002;5:47-9

Primary lymphoepithelioma-like carcinoma of the lung is a rare tumour. We report a patient with a solitary pulmonary nodule, unchanged on follow-up CT scans of the thorax over two years, but subsequently confirmed on histology as a lymphoepithelioma-like carcinoma of

Solid-cystic Pancreatic Tumour (Frantz's Tumour)—An Unusual Spleno-renal Angle Tumour in a Teenager

PSF Lee, ASC Ching, YL Chan

Hong Kong J Radiol 2002;5:50-3

We report a rare case of solid-cystic pancreatic tumour presenting as a spleno-renal angle mass in a 14-year-old girl. Transabdominal ultrasound showed a well-capsulated mass with irregular heterogeneous echogenic foci intermixed with small hypoechoic components in a bizarre pattern. The


Imaging Features of Aleveolar Soft Part Sarcoma

S Nicolaou, J Hagel, PL Munk, WC Torreggiani, JJ Dubec, MJ Lee, JX O'Connell

Hong Kong J Radiol 2002;5:54-62

Alveolar soft part sarcoma is a rare, highly vascular, soft tissue sarcoma. It usually presents as a slow growing, painless lesion in the lower extremities of young adults. Bone invasion is rare. In this pictorial essay, we present the imaging

Rheumatoid Arthritis: Survey of Magnetic Resonance Imaging Features in the Musculoskeletal System

PL Munk, LO Marchinkow, WC Torreggiani, MJ Lee

Hong Kong J Radiol 2002;5:63-8

Rheumatoid arthritis is the most common inflammatory arthropathy worldwide, but may be less prevalent in Asian populations. The spectrum of magnetic resonance imaging findings encountered in the musculoskeletal system in this disease are discussed. The role of magnetic resonance imaging


Percutaneous Insertion of Hickman Central Venous Catheter: Jugular Approach

KY Lau

Hong Kong J Radiol 2002;5:69-72

Traditionally, tunnelled central venous catheter insertions have been performed by surgeons. However, there is an increasing trend towards central catheters being placed by interventional radiologists under image guidance. The many advantages of inserting central catheters via the jugular approach under