Original Articles

Computed Tomography Colonoscopy with Faecal Tagging in the Detection of Colorectal Tumours: Report of Local Experience

WH Kwan, WK Chau, WH Yeung, KP Wong, WK Kwok, TM Chan, J Khoo

Hong Kong J Radiol 2004;7:199-205

Objective: To determine the sensitivity and specificity of computed tomography colonoscopy with faecal tagging in the detection of colorectal polyps, adenomas, and carcinomas, with colonoscopy as the reference method.

Patients and Methods: A total of 51 patients underwent computed tomography

Effect of Cranial Irradiation on Pituitary Size in Patients Cured of Acute Lymphoblastic Leukaemia: Retrospective Study

KK Shing, D Roebuck, MP Yuen, KW Chik, CK Li, YL Chan

Hong Kong J Radiol 2004;7:195-8

Objective: To evaluate the pituitary glands of patients previously treated for acute lymphoblastic leukaemia with cranial irradiation.

Patients and Methods: Thirty nine patients who were cured of acute lymphoblastic leukaemia and who were regularly followed up from 1979 to 1992

Long-term Results for Postoperative Radiotherapy Following Radical Hysterectomy for Stage IB Cervix Cancer

Full Article

KB Smith, RJ Amdur, AR Yeung, CG Morris, J Kirwan, L Morgan

Hong Kong J Radiol 2009;12:8-11

Objective: To evaluate the long-term outcomes of patients with stage IB cervix cancer who were selected for primary surgery because they were thought to be at low risk for needing postoperative radiotherapy following radical hysterectomy.

Microcalcifications on Screening Mammograms - Can Recall for Magnification View be Replaced by Analogue Magnification Using a Video Visualiser and Television?

Full Article

WCW Wong, EYL Kan, CY Lui, GKF Tam, LK Chan, HS Lam

Hong Kong J Radiol 2009;12:3-7

Objective: To determine whether recall for magnification views for mammographic microcalcification can be replaced by analogue magnification using a video visualiser and standard television.

Methods: Mammograms of 141 patients that were positive for

Incidence, Causes, and Implications of Unsuccessful Calciication Retrieval at Stereotactic Breast Biopsy - 5 Years' Experience

Full Article

KMK Kwok, CY Lui, PYE Fung, LK Chan, HS Lam

Hong Kong J Radiol 2009;11:154-60

Objective: To determine the incidence, causes, and implications of calcification retrieval failure at stereotactic breast biopsy.

Stratifying Risk for Malignancy Using Microcalciication Descriptors from the Breast Imaging Reporting and Data System 4th Edition: Experience in a Single Centre in Hong Kong

Full Article

KKK Chan, CY Lui, T Chu, KK Chan, AT Yan, K Wong, PY Fung, LK Chan, HS Lam

Hong Kong J Radiol 2009;11:149-53

Objective: To evaluate whether categorisation of microcalcification descriptors based on the Breast Imaging Reporting and Data System 4th edition can stratify the risk for malignancy using pathology results of biopsies as the gold standard.

Standard-dose Prescription of Radioiodine Therapy for Thyrotoxicosis: the Queen Mary Hospital Experience

C Kwok, L Lui, PM Wu, M Law, E Cheung, A Cheng, CC Yau

Hong Kong J Radiol 2004;7:187-94

Objective: To review the treatment outcome of a cohort of thyrotoxic patients treated with a standardised regimen of radioactive iodine.

Patients and Methods: Between January and December 2000, a total of 177 patients with a diagnosis of thyrotoxicosis were

Effect of Age on Presentation, Management, and Outcome of Patients with Differentiated Thyroid Carcinoma: Retrospective Study

SM Chow, CK Kwan, PCM Poon, SCK Law

Hong Kong J Radiol 2004;7:181-6

Objective: To investigate the effect of age on presentation, management, and outcome of differentiated thyroid carcinoma.

Patients and Methods: Records of a cohort of 1369 patients who presented between 1960 and 2000 to the Department of Clinical Oncology at the

Radiation Dose to Patients Undergoing Interventional Radiological Procedures in Selected Hospitals in Malaysia: Retrospective Study

B Sapiin, KH Ng, BJJ Abdullah

Hong Kong J Radiol 2004;7:129-36

Objective: To study doses received by patients undergoing various interventional radiology (cardiac and non-cardiac) procedures.

Patients and Methods: A total of 310 patients undergoing cardiac procedures in 6 selected hospitals in Malaysia between July 2000 and May 2001 were studied

The Role of Surgical Resection, Radiation Dose, and Radiation Field Size in the Management of Gastric Lymphoma: Retrospective Study

AT Monroe, RW Hinerman, CG Morris, NP Mendenhall

Hong Kong J Radiol 2004;7:121-8

Objective: This retrospective review sought to determine outcomes in gastric lymphoma and analyse the effect of field size and radiation dose on patterns of recurrence and toxicity.

Patients and Methods: The study group comprised 31 patients (25 men and 6

Rebiopsy after Stereotactic Core-needle Breast Biopsy: Prospective Study

CY Lui,HS Lam, KF Tam, EPY Fung, LK Chan

Hong Kong J Radiol 2004;7:116-20

Objective: To review the indications for rebiopsy and subsequent pathology after stereotactic percutaneous core biopsy of breast lesions.

Patients and Methods: Stereotactic, 14-Gauge, core-needle biopsy was performed on 242 non-palpable breast lesions in 240 consecutive patients from 1 January

Effect of Retrospective Electrocardiography—gating on Quality of High-resolution Computed Tomography Images of the Lung

Z Pan, H Zhang, H Ling, B Ding, Q Song, K Chen, H Jiang

Hong Kong J Radiol 2004;7:112-5

Objective: To investigate the effect of retrospective electrocardiography-gating on the quality of highresolution computed tomography images of the lung.

Patients and Methods: Between October 2002 and August 2003, a total of 50 patients underwent high-resolution computed tomography

Cost-effectiveness Analysis of Protocol-driven Barium Enema Performed by Radiographers

Full Article

CM Chu, WH Ng, DYW Siu, WK Li, PSF Lee

Hong Kong J Radiol 2008;11:112-5

Objective: To assess the cost-effectiveness of protocol-driven barium enema performed by radiographers compared with that performed by radiologists.

Methods: This was a retrospective review of 248 consecutive patients

Audit of Ultrasonography for Diagnosis of Acute Appendicitis: a Retrospective Study

Full Article

HS Fung, S Lau, JCW Siu, CM Chan, SCH Chan

Hong Kong J Radiol 2008;11:108-11

Objective: To determine the utility and accuracy of ultrasonography for the diagnosis of acute appendicitis.

Methods: In this retrospective study, 242 of 286 patients undergoing ultrasonography of the appendix from 1 June 2006 to 31

Endovascular Management of Iatrogenic Renal Vascular Injuries Complicating Percutaneous Nephrolithotripsy: Role of Renal Angiography and Superselective Coil Embolisation

Full Article

TJ Tan, HS Teh, U Pua, SH Ho

Hong Kong J Radiol 2008;11:103-7

Objective: To describe the use of renal angiography in the detection of renal vascular injuries following percutaneous nephrolithotripsy and to assess the efficacy of endovascular management of these complications.

Clinical Evaluation of Radiation Dose Benefit and Image Quality of the Step-and-Shoot Technique Electrocardiogram-gated Coronary Computed Tomography Angiography

Full Article

GG Lo, JKF Chan, SK Yu, CW Lau, YF Leung

Hong Kong J Radiol 2008;11:81-4

Objective: To evaluate the radiation dose reduction benefit and image quality performance of SnapShot Pulse in step-and-shoot mode for helical coronary computed tomography angiography.

Methods: Twenty coronary computed tomography angiography

Magnetic Resonance Imaging Findings of Japanese Encephalitis

JCW Siu, CY Chan, YC Wong, MK Yuen

Hong Kong J Radiol 2004;7:76-80

The initial clinical presentation of Japanese encephalitis is usually non-specific and can be similar to other causes of encephalitis or encephalopathy. Early and accurate diagnosis requires a high index of suspicion by both physician and radiologist. This report describes the

Cherubism as a Rare Cause of Bilateral Expansion of the Mandible: Radiological Manifestations

Full Article

MH Atalar, E Albayrak, P Erdinc, S Bulut

Hong Kong J Radiol 2008;11:76-80

Objective: To describe the radiological findings of the rare osseous disorder cherubism.

Methods: Five patients with cherubism underwent clinical, radiological, and histopathological evaluation. The patients’ sex, age, and

Reactivation of Hepatitis B after Irinotecan

LCY Lui, RTT Chan, CCH Kwok, WM Wong, CC Yau, GKH Au, CL Lai

Hong Kong J Radiol 2004;7:72-5

Objective: To analyse the incidence of hepatitis B reactivation following treatment with irinotecan-based combined chemotherapy and the outcomes of patients with hepatitis B reactivation.

Patients and Methods: A prospective phase II study investigating the response to irinotecan, leucovorin, and 5-fluorouracil

Thoracocentesis for Potential Malignancy: Does Volume Matter?

Full Article

O Buckley, W Benfayed, T Geoghegan, T Persaud, M Jeffers, F Khosa, WC Torreggiani

Hong Kong J Radiol 2008;11:72-5

Objective: To determine whether the volume of fluid aspirated during ultrasound-guided thoracocentesis influences the histological diagnosis.

Methods: Fifty patients with unilateral pleural effusion of unknown cause,

External Beam Radiotherapy for Hurthle Cell Carcinoma of the Thyroid

JG Brabham, CG Morris, RJ Amdur, WM Mendenhall

Hong Kong J Radiol 2004;7:70-1

Objective: To analyse the efficacy of external beam radiotherapy in patients with Hürthle cell carcinoma of the thyroid treated with curative intent.

Patients and Methods: Five patients received postoperative radiotherapy for suspected subclinical (3 patients) or gross residual (2 patients)

Image-guided Drainage Using the Trocar Technique

Full Article

WC Fan, CC Chan, JCS Chan

Hong Kong J Radiol 2008;11:69-71

Objective: To investigate the safety profile of image-guided drainage using the trocar technique.

Methods: The medical records of 93 patients undergoing image-guided drainage procedures using the trocar technique at a local

Comparison of 1.5 Tesla and 3.0 Tesla for Skull Base Lesion Enhancement

Full Article

FJ Londy, S Rohrer, S Kumar, H Parmar, SK Mukherji

Hong Kong J Radiol 2008;11:19-23

Aim: To determine whether there are significant differences between 3.0 Tesla and 1.5 Tesla in the degree of contrast enhancement of skull base lesions.

Patients and Methods: Fifteen consecutive patients with lesions

64-Slice Multi-detector Computed Tomography for Detection of Acute Gastrointestinal Bleeding

Full Article

HS Fung, PC Kwok, S Lau, WK Wong, SCH Chan

Hong Kong J Radiol 2008;11:13-8

Aim: To evaluate the usefulness of 64-slice multi-detector computed tomography for the detection of acute gastrointestinal bleeding.

Patients and Methods: In this retrospective study, 20 patients presenting with acute gastrointestinal bleeding from 1 October 2005 to

Balloon Angioplasty and Stent Placement for Atherosclerotic Renal Artery Stenosis: a Retrospective Efficacy Study

JCW Tsang, SCW Cheung, WK Tso, PS Yip, FL Chan

Hong Kong J Radiol 2004;7:31-4

Objective: To assess the effectiveness of angioplasty and/or stenting of atherosclerotic renal artery stenosis on renovascular hypertension and renal function.

Patients and Methods: Between March 2000 and June 2002, seventeen consecutive patients with atherosclerotic renal artery stenosis were referred