The multileaf travel range limitations on some linear accelerators require the splitting of a large intensity-modulated field into two or more adjacent abutting intensity-modulated subfields. The abutting subfields are then delivered as separate treatment fields. This workaround not only increases the treatment delivery time but it also increases the total monitor units (MU) delivered to the pa...

Modulated electron radiation therapy (MERT) has been proven as an effective way to deliver conformal dose distributions to shallow tumors while sparing distal critical structures and surrounding normal tissues. It had been shown that a dedicated electron multileaf collimator (eMLC) is necessary to reach the full potential of MERT. In this study, a manually-driven eMLC for MERT was investigated....

BACKGROUND Vision in people with autism spectrum conditions (ASC) is reported to be different from people without ASC, but the neural level at which the differences begin to occur is not yet known. Here we examine two variants of a vernier acuity task to determine if differences are evident in early visual processing. FINDINGS Abutting and separated vernier acuity was assessed in 16 people wi...

Computed tomography (CT) of the chest showed a multiseptate cystic lesion (6.5cmx6.5cm) with thick irregular and calcific densities within it seen in the right paracardiac region abutting the right atrium (Figure 2). Fibreoptic bronchoscopy did not reveal any remarkable findings. A right lateral thoracotomy was performed under general anaesthesia. A solid well Figure 2. Contrast enhanced CT of ...

The authors present the case of a 38-year-old female who presented with an ingested oesophageal foreign body (lamb bone) following consumption of a casserole. The bone was initially not seen on plain x-ray but CT imaging revealed a 21×20 mm pyramid shaped bone distending the proximal oesophageal mucosa and lodged only 2 mm from the aortic arch. Cardiothoracic surgery services were available on ...

OBJECTIVE To assess the safety and therapeutic efficacy of a percutaneous radiofrequency (RF) ablation for the hepatocellular carcinoma (HCC) abutting the diaphragm. MATERIALS AND METHODS We retrospectively assessed 80 patients who underwent a percutaneous RF ablation for a single nodular (< 4 cm) HCC over the last four years. Each patient underwent an ultrasound-guided RF ablation using inte...