BACKGROUND Patients with somatostatin receptor-expressing neuroendocrine tumours can be treated with intravenously administered 177Lu-octreotate. Few patients are cured with the present protocol due to the current dose limitation of normal organs at risk, such as the kidneys. By locally administering 177Lu-octreotate to the liver for the purpose of treating liver metastases, a substantially red...

In this paper, signed-rank based nonparametric detectors are used for pseudonoise (PN) code acquisition in frequency-selective Rician fading channels. We first derive the locally optimum rank detector and then propose the locally suboptimum rank (LSR) and th order modified signed-rank (MSR ) detectors using approximate score functions. We compare the hybrid parallel double-dwell scheme using th...

Quantitative measurement of myocardium perfusion is possible with single photon emission computed tomography (SPECT) using a semiconductor detector. However, accumulation of 99mTc-tetrofosmin in the liver may make it difficult to assess that accurately in the inferior myocardium. Our idea is to reduce the high accumulation in the liver by using dynamic SPECT imaging and a technique called time ...

In this study, novel dual-energy detection modes for digital mammography, consisting of a combination of gas detector media with semiconductor detectors, are presented and discussed. The purpose of this study is to measure experimentally the figure of merit (FOM) of this multimedia detector for dual-energy imaging. The experimental results indicate that the multimedia detector exhibits a high F...

Surface plasmon resonances in metallic nanoparticles are of interest for a variety of applications due to the large electromagnetic field enhancement that occurs in the vicinity of the metal surface, and the dependence of the resonance wavelength on the nanoparticle’s size, shape, and local dielectric environment. Here we report an engineered enhancement of optical absorption and photocurrent i...

BACKGROUND Cobalamin deficiency and peripheral neuropathy (PN) are commonly seen in HIV-infected adults. The level of urine methylmalonic acid (UMMA), a reliable indicator of tissue cobalamin status, was determined in HIV infected subjects with and without PN to establish this association. METHODS One hundred and ninety-eight (198) consenting HIV infected subjects with and without PN were rec...

In this paper, we study a recently proposed multirate system, called wavelet based scale-code division multiple access (W/S-CDMA). W/S-CDMA depends on the code, time and scale orthogonality introduced by pseudo-noise (PN) sequences, and wavelets. In this system, the channel is partitioned into different scales, and each scale into time slots. In addition, the PN sequences are used in each scale...