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Parathyroid adenomas evaluated by Tl-201/Tc-99m pertechnetate subtraction scintigraphy and high-resolution ultrasonography 总被引:2,自引:0,他引:2
Winzelberg GG; Hydovitz JD; O'Hara KR; Anderson KM; Turbiner E; Danowski TS; Lippe RD; Melada GA; Harrison AM 《Radiology》1985,155(1):231-235
Thallium-201/technetium-99m pertechnetate subtraction scintigraphy of the parathyroid glands was performed in a prospective study of 33 patients who had undergone bilateral neck exploration for elevated serum calcium and serum parathyroid hormone levels. In 31 cases, the Tl-201/Tc-99m subtraction technique yielded an overall sensitivity of 81%, specificity of 99%, and accuracy of 94% for identifying solitary parathyroid adenomas. Tl-201/Tc-99m subtraction scintigraphy correctly identified 73% of parathyroid adenomas weighing less than 499 mg, 79% of those weighing 500-1,499 mg, and 100% of adenomas weighing more than 1,500 mg. In a subgroup of 24 patients with solitary parathyroid adenomas who underwent both scintigraphy and high-resolution sonography, the sensitivity, specificity, and accuracy of both procedures were similar. 相似文献
64.
Endothelin-1 acts via protein kinase C to block KATP channels in rabbit coronary and pulmonary arterial smooth muscle cells 总被引:4,自引:0,他引:4
We investigated the effects of the vasoconstrictor endothelin-1 (ET-1) on the whole-cell ATP-sensitive K+ (KATP) currents of smooth muscle cells that were isolated enzymatically from rabbit coronary artery (CASMCs) and pulmonary artery (PASMCs). The size of the KATP current did not differ significantly between CASMCs and PASMCs. ET-1 reduced the KATP current in a concentration-dependent manner, and this inhibition was greater in PASMCs than in CASMCs (half-inhibition values of 12.20 nM and 1.98 nM in CASMCs and PASMCs, respectively). However, the level of inhibition induced by other vasoconstrictors (angiotensin II, norepinephrine, and serotonin) were not significantly different between CASMCs and PASMCs. Pretreatment with the protein kinase C (PKC) inhibitors staurosporine (100 nM) and GF 109203X (1 microM) prevented ET-1-induced inhibition of the KATP current in both arterial smooth muscle cell preparations. The PKC activators phorbol-12,13-dibutyrate (PDBu) and 1-olelyl-2-acetyl-sn-glycerol (OAG) reduced the KATP current in dose-dependent manner. Although the numbers of ET receptors were not significantly different between the 2 arterial smooth muscle cell preparations, the effects of PDBu and OAG were greater on PASMCs. ET-1-induced inhibition of the KATP current was unaffected by the PKA inhibitor Rp-cAMPs (100 microM) and PKA inhibitory peptide (5 microM). 相似文献
65.
Computed tomographic appearance of the bulging annulus 总被引:6,自引:0,他引:6
66.
Thoracic wall involvement by Hodgkin disease and non-Hodgkin lymphoma: CT evaluation 总被引:6,自引:0,他引:6
Thoracic computed tomographic (CT) scans of 250 patients with newly diagnosed or recurrent lymphoma revealed thoracic wall involvement in 24 patients (11 with Hodgkin disease, 13 with non-Hodgkin lymphoma). Thoracic wall involvement occurred without contiguous mediastinal or parenchymal involvement in 17 patients. Of these, 13 patients had masses beneath the pectoralis muscles or within the breast, and four had masses arising from the ribs. Five additional patients had mediastinal masses with thymic involvement and parasternal extension through the thoracic wall. Pulmonary parenchymal lymphoma with thoracic wall invasion was noted in the remaining two patients. In five of nine patients receiving radiation therapy, treatment plans were modified by CT demonstration of thoracic wall lymphoma. 相似文献
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68.
Kay N Liang CC 《The Journal of the American Association of Gynecologic Laparoscopists》2004,11(3):433-435
An ectopic pregnancy may occur in unusual sites. In the following case, an ectopic pregnancy was discovered in the first trimester within an inguinal herniorrhaphy scar from an inguinal herniorrhaphy performed about 20 years previously. Early diagnosis of the ectopic pregnancy by sonography enabled laparoscopic management and preservation of the woman's fertility. 相似文献
69.
Nari GA Ponce O Moll F Jozami J López Bustos R Carabajal R Cirami M Yanucci V 《Acta gastroenterologica Latinoamericana》2003,33(4):205-209
Diaphragmatic traumatic chronic hernias are infrequent. Diagnostic can be difficult if don't exist suspicion and treatment is always by surgery. The aim of this paper is to present three cases and makes an actualisation in basis to our experience and the literature. 相似文献
70.
刑事警察心理健康调查分析 总被引:2,自引:0,他引:2
①目的了解刑事警察的心理健康状况,为心理干预提供依据。②方法对济宁市刑警队员进行症状自评量表(Symptom Checklist 90.SCL-90)、焦虑自评量表(Self—rating Anxiety state,SAS)、抑郁自评量表(Self—rating Depression scale,SDS)评定。③结果济宁市刑警队员的SCL-90、SAS、SDS量表评分与全国常模相比存在显著性差异。④结论。刑事警察职业是一种特殊职业,该职业对队员的心理健康有显著的影响,这种影响随着从事刑警工作时间的不同而改变。 相似文献