Radiology Key

6]. In order to understand these layers, we draw a comparison with the postal system (Table 12.1). Table 12.1 The four network layers of the TCP/IP model Layer Network Postal…

1]. In fact, Moore’s law still holds today, with processors doubling in complexity approximately every 2 years. Moore’s law typifies the growth in all aspects of computing. Hard disk drive…

Introduction     History      Benefits and hazards of computerization  Networking     Link layer: physical infrastructure      Network layer: addressing      Transport layer: send and receive      Application layer: the program      Network security      Dicom         Dicom services         Dicom…

[9]. Within the last few years is has become more difficult to obtain iridium-192 wire in the UK. The future trend is to carry out implants using remote afterloading machines….

Figure 11.1B) are inserted to the tumour-bearing structure at 12   mm intervals under fluoroscopic control. The most posterior gutter guide is inserted first and attempts are made to keep all subsequent…

Anal cancer Implantation is rarely used as the sole treatment of anal cancer. Patients are initially treated with external beam radiotherapy to doses of 40–45   Gy over 4–5 weeks. Patients with…

Bile duct cancer Primary biliary cancer is a rare condition. For this reason, studies in the use of intraluminal brachytherapy have tended to be small, non-randomized trials. Iridium wire or,…

Oesophagus An endoscope is used to place a suitable catheter through the oesophageal tumour. A high dose iridium source or, less frequently, caesium pellets in the medium dose rate Selectron…

Bronchial cancers The possible major indication for intraluminal brachytherapy in carcinoma of bronchus is obstruction of a major airway. A fine catheter can be introduced through the tumour using a…

Gynaecological cancer Related posts: descriptors of the radionuclide imaging process Radiation treatment planning: immobilization, localization and verification techniques Principles and practice of radiation treatment planning trends Dentition