Original Articles

KKT Pak, JLF Chiu, CS Kwok, SC Wong, SY Yiu, SCH Chan

Hong Kong J Radiol 2003;6:195-200

Objective: To compare the diagnostic accuracy of spot digital and conventional screen-film mammography and the influence of clinical data on the characterisation of microcalcifications.

Patients and Methods: Twenty nine patients with 30 groups of microcalcifications were studied. Two radiologists assessed

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,

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

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).

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,

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,

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,

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

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

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

SS Lingawi

Hong Kong J Radiol 2003;6:20-4

Aim: To determine the prevalence of vascular impingement of the trigeminal, facial, and vestibulocochlear nerves in a healthy population.

Subjects and Methods: The trigeminal, facial, and vestibulocochlear nerves of 90 asymptomatic volunteers were assessed for the presence or absence of

JJ Wong, OC Leung, MK Yuen

Hong Kong J Radiol 2011;14:78-83

Objective: To investigate the sensitivity of magnetic resonance for detecting cervical ossification of the posterior longitudinal ligament.

Methods: A retrospective review of 427 patients in whom cervical ossification of the posterior longitudinal ligament

M Nor Azam, NM Nik Munirah, W Zulmi

Hong Kong J Radiol 2011;14:73-7

Objective: Osteosarcoma is the most frequent skeletal malignancies in children and adolescents. Studies indicate that hypoxia of such solid tumours has a major prognostic impact; severe and long-lasting hypoxia results in tumour necrosis. Therefore presence of

KC Chan, PSF Lee, CC Chan

Hong Kong J Radiol 2011;14:68-72

Objective: To review the outcome of patients treated by percutaneous cholecystostomy and antibiotics alone for acute cholecystitis without resorting to elective cholecystectomy.

Methods: Data on patients who underwent percutaneous

Full Article

TYC Chu, CS Wong, WS Mak, KF Ma, LF Cheng

Hong Kong J Radiol 2009;12:57-9

Objective: Small bowel follow-through examination with Gastrografin (diatrizoate meglumine and diatrizoate sodium solution) is important for delineating the cause of small bowel obstruction. However, whether the standard protocol should include the 24-hour