Original Articles

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

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

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

FJ Lagerwaard, PC Levendag, A van Nimwegen, C de Pan, PJCM Nowak

Hong Kong J Radiol 2001;4:137-42

Objective: We report a 5-year local relapse-free survival of 94% for T1 to 2 nasopharyngeal carcinoma using endocavitary brachytherapy as a boost to deliver cumulative doses of 95 Gy to the nasopharynx. Brachytherapy may be less than adequate for extension

SK Yu, CM Kung, YK Cheung, CF Ip, TL Chan, E Tsui

Hong Kong J Radiol 2001;4:146-9

Objectives: To determine the total dose-area product values for barium enema examinations; to determine the major dose contributor and to propose methods for reduction of patient dose without affecting the diagnostic values of the examination; and to compare the results

HPS Wai, RMW Yeung, WM Sze, TK Yau, AWM Lee

Hong Kong J Radiol 2001;4:143-5

Superior vena cava obstruction is, in the majority of patients, due to the presence of a malignant tumour within the mediastinum, i.e. lung cancer and lymphoma. It is usually highly responsive to radiotherapy, regardless of the underlying tumour

BJJ Abdullah, KH Ng, P Rassiah

Hong Kong J Radiol 2001;4:133-6

Objective: To compare the dose area product, effective dose, and image quality of hysterosalpingography using conventional and high kilovolt techniques.

Patients and Methods: Image quality and patient dose were assessed for hysterosalpingography examinations performed on 30 patients at the University

LC Wong, P Choi

Hong Kong J Radiol 2001;4:202-8

Objective: To assess the functional outcome and survival of patients with malignant spinal cord compression following palliative radiotherapy, with or without surgery.

Materials and Methods: Medical records of 50 patients with malignant spinal cord compression, scheduled for palliative radiotherapy between

WH Kwan, WH Kwok, WH Yeung, CS Cheng

Hong Kong J Radiol 2001;4:196-201

Objective: To investigate the distribution of thoracic lymphadenopathy in Chinese patients presenting with sarcoidosis.

Materials and Methods: Four patients with sarcoidosis (2 male and 2 female with a mean age of 35.2 years) were diagnosed at Ruttonjee Hospital from 1994

KH Au, TS Choy, KC Ngan

Hong Kong J Radiol 2001;4:189-95

Objective: To evaluate the outcome and natural history of patients with major salivary gland carcinomas treated at Queen Elizabeth Hospital between 1982 and 1998.

Patients and Methods: The records of 111 patients with major salivary gland carcinomas who were referred

BJ Abdullah, S Arasaratnam, G Kumar, K Gopala

Hong Kong J Radiol 2001;4:185-8

Objective: To evaluate the septation, wall thickness, and relationship of the sphenoid sinuses to the internal carotid arteries on computed tomography.

Methods: Seventy patients with normal sphenoid sinuses were evaluated. Scans were done in both axial and coronal planes. The number

KF Lai, YK Cheung, CB Tan, E Tsui, SK Yu

Hong Kong J Radiol 2001;4:181-4

Objectives: To review protocols used in Hong Kong public hospitals for computed tomography brain scans, with a view to highlighting potential radiation damage to the lens with particular scanning planes.

Methods: Following a survey of radiological practice in 8 local hospitals,

KT Wong, YL Chan, C Metreweli

Hong Kong J Radiol 2001;4:268-71

Objectives: To establish the age-related distribution of clival marrow magnetic resonance imaging appearances in ethnic Chinese and to compare these findings with the clival marrow magnetic resonance imaging appearances seen in Chinese patients with nasopharyngeal carcinoma.

Materials and Methods: T1-weighted

S Lau, KH Ng, BJJ Abdullah

Hong Kong J Radiol 2001;4:264-7

Objectives: To assess the appropriateness of viewbox and display monitor luminance and radiology reading room illumination in selected Malaysian hospitals.

Materials and Methods: The luminance of viewboxes was measured in 4 hospitals, along with the display monitors in 1 of

YL Chan, H Schlemmer, DKW Yeung, T Wilhelm, P Bachert

Hong Kong J Radiol 2001;4:259-63

Objective: To qualitatively and quantitatively compare spectra obtained on single voxel spectroscopy and magnetic resonance spectroscopic imaging in suspected recurrence of brain tumour or radiation necrosis.

Patients and Methods: Six patients with suspected recurrence of brain tumour or radiation necrosis

C Hong, C Becker, R Bruening, MF Reiser

Hong Kong J Radiol 2001;4:252-8

Objective: Multislice computed tomography is an emerging technology with the potential for non-invasive coronary investigation. The aim of this study was to evaluate the feasibility and limitations of multislice computed tomography in the detection of coronary artery disease.

Patients and Methods: