http://www.cnr.it/ontology/cnr/individuo/prodotto/ID184336
Thyroid Color Flow Doppler Sonography: An Adjunctive Tool for Differentiating Patients with Inappropriate Thyrotropin (TSH) Secretion due to TSH-Secreting Pituitary Adenoma or Resistance to Thyroid Hormone (Articolo in rivista)
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- Thyroid Color Flow Doppler Sonography: An Adjunctive Tool for Differentiating Patients with Inappropriate Thyrotropin (TSH) Secretion due to TSH-Secreting Pituitary Adenoma or Resistance to Thyroid Hormone (Articolo in rivista) (literal)
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- 2006-01-01T00:00:00+01:00 (literal)
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Fausto Bogazzi,1; Luca Manetti,1; Luca Tomisti,1; Giuseppe Rossi,3; Chiara Cosci,1; Chiara Sardella,1; Luigi Bartalena,2; Maurizio Gasperi,1; Enrico Macchia,1; Paolo Vitti,1; and Enio Martino1 (2006)
Thyroid Color Flow Doppler Sonography: An Adjunctive Tool for Differentiating Patients with Inappropriate Thyrotropin (TSH) Secretion due to TSH-Secreting Pituitary Adenoma or Resistance to Thyroid Hormone
in Thyroid (N.Y.N.Y.); Mary Ann Liebert, Larchmont, NY (Stati Uniti d'America)
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- Fausto Bogazzi,1; Luca Manetti,1; Luca Tomisti,1; Giuseppe Rossi,3; Chiara Cosci,1; Chiara Sardella,1; Luigi Bartalena,2; Maurizio Gasperi,1; Enrico Macchia,1; Paolo Vitti,1; and Enio Martino1 (literal)
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- 1 Department of Endocrinology and Metabolism, University of Pisa, Pisa, Italy.
2 Department of Clinical Medicine, University of Insubria, Varese, Italy.
3 Unit of Epidemiology and Biostatistics, Institute of Clinical Physiology, National Research Council, Pisa, Italy. (literal)
- Titolo
- Thyroid Color Flow Doppler Sonography: An Adjunctive Tool for Differentiating Patients with Inappropriate Thyrotropin (TSH) Secretion due to TSH-Secreting Pituitary Adenoma or Resistance to Thyroid Hormone (literal)
- Abstract
- Background: Thyrotropin (TSH)-secreting pituitary adenoma (TSHoma) and resistance to thyroid hormone (RTH) are two forms of inappropriate TSH secretion. Thyroid blood flow is largely TSH dependent. Objective:
To assess whether thyroid blood flow may help to differentiate TSHoma and RTH. Design: Intrathyroidal color flow Doppler sonography (CFDS) pattern and peak systolic velocity (PSV) were assessed at baseline and during T3 suppression test on eight consecutive patients with TSHoma and 10 with RTH. Main outcome: All controls had CFDS pattern 0. Three RTH patients had pattern I and seven had pattern II. Two TSHoma patients
had pattern I, five had pattern II, and one had pattern III. PSV at baseline was 3.8 ? 1.3 cm/s in controls, 8.8 ? 2.5 cm/s in RTH, 11.1 ? 2.7 cm/s in TSHoma (p ? 0.0003 vs. controls, p ? 0.087 RTH vs. TSHoma). After T3
suppression test, PSV values were lower in RTH than in TSHoma (4.6 ? 1.8 vs. 7.7 ? 2.6 cm/s, p ? 0.008). PSV values and CFDS pattern normalized in nine and eight RTH patients, respectively, after T3 suppression test; conversely, only one TSHoma patient had a normalization of PSV values, and none had a normalization of CFDS pattern (p ? 0.003 vs. RTH). Conclusions: Both RTH and TSHoma have increased CFDS pattern and PSV
values; however, after T3 both parameters normalized in most patients with RTH but not in those with TSHoma. Accordingly, CFDS pattern and PSV are adjunctive tools to differentiate these two forms of inappropriate TSH secretion. (literal)
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