Journal

Quantitative Analysis of Artifacts Created by Metallic Orthopaedic Implants

SK Yu, WL Poon, KF Lai, MK Yuen

Hong Kong J Radiol 2003;6:191-4

Objective: To evaluate the magnitude of artifacts created by different materials commonly used in orthopaedic implants and their variation with the distance from the implants.

Patients and Methods: Metallic orthopaedic implants made of 3 different types of materials (stainless steel,

Scan Mode Performance of Dual Energy X-ray Absorptiometry Bone Densitometer

SK Yu, KM Ma, SK Cheung

Hong Kong J Radiol 2003;6:187-90

Objective: A commercially available dual energy X-ray absorptiometry scanner normally provides more than 1 scan mode. The differences between scan modes affect scan time, received radiation dose, and quality of the scan image. A phantom study was performed

Radiotherapy for Optic Nerve Sheath Meningiomas

WM Mendenhall, RJ Amdur, CG Morris, WA Friedman

Hong Kong J Radiol 2003;6:183-6

Objective: To determine the outcome after radiotherapy for optic nerve sheath meningiomas.

Patients and Methods: Six patients were treated with conventional (1 patient) or stereotactic (5 patients) radiotherapy and were followed up from 3.1 to 9.9 years (mean, 6.2 years).

Uterine Artery Embolisation for the Treatment of Symptomatic Uterine Leiomyomata—Technique

R Ryan, C Johnston, N McEniff

Hong Kong J Radiol 2003;6:173-6

Uterine leiomyomata (fibroids) are extremely commonly encountered in gynaecological practice. Treatment has traditionally focused on medical and surgical modalities, but the interventional radiology technique of uterine artery embolisation has evolved as an alternative in the past few years. The purpose

Advances in Endocrine Therapy for Early and Advanced Breast Cancer

AU Buzdar

Hong Kong J Radiol 2003;6:165-72

Significant advances have been made in the treatment of breast cancer since the link was made between the endocrine system and the disease more than 100 years ago. Tamoxifen was the first successful endocrine therapy although, despite its proven effectiveness,

Kasaback-Merritt Syndrome Treated by Transarterial Embolisation of Giant Cavernous Haemangioma

EPY Fung, WH Luk, TK Loke, JCS Chan

Hong Kong J Radiol 2003;6:162-4

Cavernous haemangiomas of the liver are the most common benign tumours of the liver. With modern imaging modalities, haemangiomas are detected more frequently. This report describes a patient with a giant cavernous haemangioma with consumptive coagulopathy that was successfully treated

Vertebral Artery Dissection in a 5-year-old Child: Serial Magnetic Resonance Angiography Appearance

TW Fan, KW Tang, KF Chan, SP Wu

Hong Kong J Radiol 2003;6:158-61

This report is of a 5-year-old boy presenting with complex partial seizures. These were subsequently found to be due to vertebral artery dissection by magnetic resonance imaging and contrast-enhanced magnetic resonance angiography. Serial changes of contrast-enhanced magnetic resonance angiography

An Unusual Case of Pure Germinoma in a Patient With Tourette's Syndrome

HD Pacholke, DW Pincus, NP Mendenhall

Hong Kong J Radiol 2003;6:155-7

Tourette’s syndrome is a rare, neuropsychiatric disorder of complex aetiology. Although the exact mechanism is not completely understood, neuroendocrine dysfunction is related to the pathogenesis of Tourette’s syndrome. Clinical characteristics of the disorder, including motor tics and coprolalia, are associated

Fine Needle Aspiration Biopsy in the Diagnosis of Disseminated Histoplasmosis of the Adrenal Glands

A Vijayananthan, BJJ Abdullah, SP Chan

Hong Kong J Radiol 2003;6:152-4

Disseminated histoplasmosis is a rare and potentially fatal disease caused by the dimorphic soil fungus Histoplasma capsulatum. This report is of a 66-year-old man who was initially diagnosed with a tooth abscess that was revealed to be histoplasmosis at biopsy.

Correlation of Clinical Presentation, Radiography, and Magnetic Resonance Imaging for Low Back Pain—a Preliminary Survey

PY Yong, NAA Alias, IL Shuaib

Hong Kong J Radiol 2003;6:144-51

Purpose: To determine the correlation between clinical presentation, plain radiographic signs, and magnetic resonance imaging of the lumbosacral spine for patients with low back pain.

Patients and Methods: Fifty seven patients were included in this study and their clinical presentation,

Morbidity and Mortality of Invasive Procedures Performed at Caritas Medical Centre

KH Pay, YW Lee, L Ho, CT Wong, H Huang

Hong Kong J Radiol 2003;6:137-43

Objective: Since more invasive procedures are being performed in radiology departments, this study was performed to ascertain the mortality and morbidity rate of these procedures as part of continuous quality improvement.

Patients and Methods: Five procedure categories of biopsy (lung,

Bolus Versus Continuous Infusion of Fluorouracil Plus Radiotherapy for Preoperative Treatment of Rectal Cancer

JS Gilroy, RA Zlotecki, WM Mendenhall, CG Morris, SR Schell, WR Rout,RJ Desnoyers, EM Copeland III, SN Hochwald

Hong Kong J Radiol 2003;6:132-6

Objective: To evaluate preoperative bolus versus continuous infusion chemoradiation.

Patients and Methods: Sixty eight patients received either bolus fluorouracil or continuous infusion fluorouracil combined with radiotherapy.

Results: The pathologic stages for bolus fluorouracil, continuous infusion fluorouracil, and overall were pT0,

Advances in Mammography Have Improved Early Detection of Breast Cancer

KH Ng, M Muttarak

Hong Kong J Radiol 2003;6:126-31

Breast cancer remains a leading cause of death among women throughout the world. The incidence is increasing globally and the disease remains a significant public health problem. Mammography is currently the best method to detect early breast cancer before it

Influence of Tumour Volume on the Probability of Local Control after Radiotherapy for Squamous Cell Carcinoma of the Head and Neck

WM Mendenhall, AA Mancuso, CG Morris, RJ Amdur, RW Hinerman, NP Mendenhall

Hong Kong J Radiol 2003;6:119-25

The purpose of this literature review is to determine the influence of the primary tumour volume on the likelihood of local control after radiotherapy for head and neck cancer. Tumour volume varies within T stage. The extent of this variability

Superselective Arterial Angiography and Embolization for Post-traumatic Priapism

N Al-Nakshabandi, S Lingawi, L Marchinkow, PL Munk, C Morris, G Legiehn, S Ho

Hong Kong J Radiol 2003;6:107-10

Superselective arterial angiography and embolization for post-traumatic priapism is an established procedure for the control of priapism refractory to conservative measures and medication. For the pre-procedure assessment, cavernosal aspiration of blood is used to measure oxygen. Doppler ultrasound could be

Computed Tomography of Anterior Mediastinal Masses

S Lau, WH Yeung, WH Kwan, CS Cheng, HS Lam

Hong Kong J Radiol 2003;6:100-6

Anterior mediastinal masses have diverse origins and aetiologies. Correct diagnosis requires a logical and practical strategy, recruiting as much clinical and radiological information as possible. Computed tomography is a common imaging modality for evaluating mediastinal lesions and can often offer

Intra-abdominal Desmoid Tumour

KKT Lai, YYR Chan, HCE Chan, CWA Chin

Hong Kong J Radiol 2003;6:97-9

A patient with a rapidly growing post-traumatic intra-abdominal desmoid tumour is presented. Although desmoid is classified pathologically as a benign tumour, its infiltrative nature leads to a locally aggressive mass with a high recurrence rate after surgical treatment. In view

Retroperitoneal Lymphangioma in an Adult

IYF Chan, J Khoo

Hong Kong J Radiol 2003;6:94-6

Retroperitoneal lymphangioma is a rare benign congenital malformation of lymphatic channels. This report is of a 51-year-old man with an incidental finding of retroperitoneal lymphangioma.

Vascular Complications of Ehlers-Danlos Syndrome in Young Chinese Adults

WH Luk, EPY Fung, K Wang, JCS Chan

Hong Kong J Radiol 2003;6:90-3

Arterial dissection is uncommon in young adults and there are usually underlying causes. This report describes 2 young patients with vascular complications after trivial injury who were diagnosed to have Ehlers-Danlos syndrome. One patient died while the other remains in

Cost Effectiveness Analysis of Protocol Driven Intravenous Urogram Performed by Radiographers

WH Ng, PSF Lee, HCA Chan, H Chun

Hong Kong J Radiol 2003;6:86-9

Aim: To assess the cost-effectiveness of protocol driven intravenous urogram performed by radiographers compared with that performed with a radiologist overseeing the whole examination (non-protocol driven intravenous urogram).

Patients and Methods: 200 patients were randomly selected between December 2001 to

Association of Post-irradiation Temporal Lobe Necrosis and Extra-cranial Carotid Stenosis in Nasopharyngeal Carcinoma

WWM Lam, SF Leung, KH Liu, KS Wong

Hong Kong J Radiol 2003;6:81-5

Aim: To ascertain whether temporal lobe necrosis and extracranial carotid stenosis as long-term complications of radiation are associated.

Patients and Methods: Ninety two patients underwent colour doppler ultrasound examinations for the assessment of carotid artery and cross sectional imaging of

Audit of Attendance for Scheduled Breast Imaging Examinations

TYY Wong, ALM Pang, WCW Chu, M Choi, WWM Lam

Hong Kong J Radiol 2003;6:78-80

Aim: Audit performed to ascertain the attendance rate and the reasons for non-attendance for scheduled breast imaging.

Patients and Methods: The number of defaulters scheduled for breast examinations during mid-May to mid-June 2002 was recorded. All defaulters were approached for

Oral Health and Quality of Life Following Radiotherapy for Nasopharyngeal Carcinoma

AS McMillan

Hong Kong J Radiol 2003;6:75-7

Aim: To describe the oral health condition and its psychosocial and functional impact among disease-free patients following radiotherapy for nasopharyngeal carcinoma.

Patients and Methods: In this cross-sectional study, patients with nasopharyngeal carcinoma who remained disease-free more than 1 year post-radiotherapy,

Upright, Weight-bearing, Dynamic-kinetic Magnetic Resonance Imaging of the Spine—Review of the First Clinical Results

JR Jinkins, JS Dworkin, CA Green, JF Greenhalgh, M Gianni, M Gelbien, RB Wolf, J Damadian, RV Damadian

Hong Kong J Radiol 2003;6:55-74

Magnetic resonance imaging has, until recently, been limited to scans with patients in the recumbent position. However, a new fully open magnetic resonance imaging unit has been configured to allow upright, partially upright, and recumbent imaging, enabling weight-bearing positional evaluation

Acute Osteolysis of the Public Bone and Sacral Insufficiency Fracture

YYR Chan, YL Lee, WF Ng, KKT Lai, ACW Chin, WC Wong, YHH Huang

Hong Kong J Radiol 2003;6:45-7

Pubic osteolysis can mimic malignant or infective bone disease. With a growing elderly population locally, it is expected that an increasing number of patients with pubic osteolysis will be encountered in clinical practice. Awareness of this entity and a vigorous

Paget's Disease of the Breast

CY Lui, KL Mak, HS Lam, LK Chan

Hong Kong J Radiol 2003;6:42-4

Paget’s disease of the breast is an uncommon entity. It is characterised by clinical findings of nipple changes, with or without an underlying palpable mass, and is invariably associated with underlying malignancy. We present a case of Paget’s disease of

Severe Arm Pain Preceding Life-threatening Reaction to Gadolinium—a Possible Warning Sign?

A Lqbal, CJ Roche

Hong Kong J Radiol 2003;6:40-1

Gadolinium-based contrast agents are used in selected patients for further characterisation of lesions. These contrast agents are safe for the vast majority of patients, although various adverse reactions to these agents have been reported with relatively few life-threatening reactions, especially

Computed Tomographic Diagnosis of Unsuspected Pericarditis

RT Dwyer, T Khalil

Hong Kong J Radiol 2003;6:36-9

There is a paucity of scientific literature regarding the utility of computed tomography in the diagnosis of acute pericarditis. This report may be the first in the English language literature to document a diagnosis of clinically unsuspected acute pericarditis made

Primary Tuberculosis of the Breast

JHF Yuen, TPW Lam, L Leong

Hong Kong J Radiol 2003;6:33-5

The mammographic and sonographic features of primary tuberculosis of the breast are discussed, alongside the presentation of a patient with this condition. A definitive diagnosis, based on imaging alone, can be difficult to make due to the variable patterns of

Uterine Lipoleimyoma: Ultrasound and Computed Tomography Findings

HHL Chan, MT Chau, CHL Lam, SCW Cheung

Hong Kong J Radiol 2003;6:30-2

Uterine lipoleiomyoma is a rare benign tumour, with only 8 cases reported in the radiological literature to date. It is easily misdiagnosed as an ovarian teratoma on radiological imaging studies. This report is of a patient with uterine lipoleiomyoma as