Current Medical Imaging - Volume 14, Issue 1, 2018

Objective This study aimed to explore the application value of transcranial doppler (TCD) in the inspection of cerebral vasospasm (CVS) after the treatment of intracranial aneurysm. Methods: 105 cases of patients with confirmed intracranial aneurysm were divided into two groups based on the two different treatments - craniotomy and aneurysmal clipping or interventional embolization therapy. TCD was applied to monitor the conditions of CVS of 105 cases, and case study research method was used to analyze and conclude the TCD inspection data of patients with intracranial aneurysm detected after operation. Results: The sensitivity of TCD in the detection of CVS was 83% and the specificity was 88%. Further, the incidence rate of CVS in the group treated with interventional embolization therapy was higher than that of the group treated with aneurysm clipping. Conclusions: TCD, which can be used to guide the adjustment of treatment and avoid complications, is an effective method in monitoring CVS after the treatment of intracranial aneurysm.

Background: We report a patient with a prepontine chordoma, presented with MRI features of an Epidermoid Cyst (EC) including hypointensity on T1-weighted image, hyperintensity on T2- weighted image, hyperintensity on DWI, and no contrast enhancement. We also presented a concise review of the relevant clinical data, since such cases were rarely reported in the English medical literature. Results & Conclulsion: To avoid delays in the management of patients with this locally aggressive tumor, clival chordoma should be taken into consideration as a differential diagnosis of tumors residing in close proximity to the clivus even in the absence of a bony erosion.

Tc-99m-MAA scintigraphy was performed in a patient with pulmonary hypertension to confirm the presence of a Right-to-LEFT (R-L) shunt due to the pulmonary Arteriovenous (AV) fistula. Both planar imaging and SPECT/CT showed multiple decreased or increased RI accumulation in both lung fields, and the R-L shunt ratio was high, indicating the presence of an R-L shunt. We considered that the decreased RI accumulated lesions were caused by pulmonary hypertension due to the pulmonary AV fistula. Osler-Weber-Rendu syndrome was proposed and genetic diagnosis was done. However, we speculated that the increased RI accumulated lesions were attributable to localized bleeding or a venous telangiectasia around the pulmonary AV fistula.

Tracheobronchial amyloidosis is a localised form of amyloidosis characterised by the accumulation of amyloid deposit in the trachea, main bronchi and segmentary bronchi. Although diffuse tracheobronchial amyloidosis is the most frequently seen form of primary pulmonary amyloidosis, this is a rare disease. It is demonstrated with symptoms such as progressive dyspnea, cough and haemoptysis. It may cause airway obstruction, atelectasis and recurrent bronchopulmonary infections. Although the proximal section of the tracheobronchial tree can be visualised with chest radiography and fluoroscopy, the basis for examination is computed tomography (CT). The tracheobronchial tree can be effectively evaluated with high resolution images provided by multidetector CT (MDCT) and the post-processing images of them (multiplanar reformations [MPR], minimum intensity projections [MinIP], 3D volume-rendered images (3D VR), virtual bronchoscopic images) (4). The clinical and radiological findings are here presented of a rarely encountered case of tracheal amyloidosis initially diagnosed with MDCT.

Background: A 7-year-old boy with an atypical form of X-linked adrenoleukodystrophy is reported, predominantly involving frontal, occipital and temporal lobes, corticospinal tracts and cerebellar lobes. Methods: The disease has been well documented previously with Magnetic Resonance Imaging (MRI). Discussion: However, there isn't enough data on Magnetic Resonance Perfusion Imaging (MRPI) and non-contrast Arterial Spin Labeling (ASL) technique in current literature. Conclusion: We presented initial and follow up MRI and multiphase ASL perfusion MRI findings.