Evaluation of reconstructive vascular surgery for arteriosclerosis obliterance by exercise test using Tl-201.

Reconstructive vascular surgery for intestinal angina.

THE disastrous consequences of infarction of the bowel are well documented. In an accumulated series of 274 patients from seven major centres up to 1975 the mortality averaged 95 per cent.' Baccelli2 in 1918 first described the syndrome of chronic intestinal ischaemia manifested by post-prandial pain. It was not until 1933 that Connor3 and Dunphy4 linked intestinal angina to chronic visceral ar...

Hemodynamic evaluation of vascular reconstructive surgery for childhood moyamoya disease using single photon emission computed tomography.

To evaluate the efficacy of vascular reconstructive surgery for childhood moyamoya disease, the cerebral blood flow (CBF) in 31 hemispheres of 16 patients was examined by single photon emission computed tomography (SPECT) using the 133Xe inhalation method. Results were divided into two groups; 17 hemispheres with superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis [A(+) gro...

Vascular inflammation - implications for microvascular reconstructive surgery after irradiation by

Evaluation of cerebral perfusion from bypass arteries using selective intraarterial microsphere tracer after vascular reconstructive surgery.

BACKGROUND AND PURPOSE To detect areas of cerebral perfusion from bypass arteries after vascular reconstruction, we administered selective intraarterial microsphere tracer into the external carotid arteries and determined (via single-photon emission computed tomography [IA-SPECT]) whether the distribution of radiotracer matched the arteriographic distribution of contrast material as shown on ex...

Energy window setting for optimum Tl-201 cardiac imaging [Persian]

  Introduction: Poor sensitivity and poor signal to noise ratio because of low injected thallium dose and presence of scattered photons are the main problems in using thallium in scintigraphic imaging of the heart. Scattered photons are the main cause of degrading the contrast and resolution in SPECT imaging that result in error in quantification. Thallium decay is ve...