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Correlation of the Frequency Spectrum of a Pulmonary Nodule with Observer Detection Rate

Correlation of the Frequency Spectrum of a Pulmonary Nodule with Observer Detection Rate 55- to 100-cm needle similar to that Dotter and Judkins (2) used for exit catheterization, but it is not curved. This long No. 18 thin-wall needle can be passed over the guide wire and through long catheters to, but not through, their tips. The catheters may be as small as 6-F. The needle and its catheter sheath are not threaded into the artery except for a few millimeters, just enough to get the catheter tip through the wall of the vessel. The long needle is then withdrawn. This latter approach allows one to avoid catheter exchange and to proceed directly with the same catheter, but it is somewhat cumbersome. These three methods have enabled us to catheterize very hard vessels at times when otherwise we would have had to change the puncture site even though the initial needle puncture was successful and the guide wire was in the blood vessel. NaTE: The telescopic needle set and long 55to 100-cm thin-wall needles are available from Cook, Inc., Bloomington, Ind. REFERENCES 1. Curry JL, Howland WJ: A simple arterial catheter inserter. Radiology 87:532, Sep 1966 2. Dotter CT, Judkins MP: Exit catheterization. Amer J Roentgen 100:459-465, Jun 1967 1 From http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Radiology Radiological Society of North America, Inc.

Correlation of the Frequency Spectrum of a Pulmonary Nodule with Observer Detection Rate

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Publisher
Radiological Society of North America, Inc.
Copyright
Copyright © May 1970 by Radiological Society of North America
ISSN
1527-1315
eISSN
0033-8419
Publisher site
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Abstract

55- to 100-cm needle similar to that Dotter and Judkins (2) used for exit catheterization, but it is not curved. This long No. 18 thin-wall needle can be passed over the guide wire and through long catheters to, but not through, their tips. The catheters may be as small as 6-F. The needle and its catheter sheath are not threaded into the artery except for a few millimeters, just enough to get the catheter tip through the wall of the vessel. The long needle is then withdrawn. This latter approach allows one to avoid catheter exchange and to proceed directly with the same catheter, but it is somewhat cumbersome. These three methods have enabled us to catheterize very hard vessels at times when otherwise we would have had to change the puncture site even though the initial needle puncture was successful and the guide wire was in the blood vessel. NaTE: The telescopic needle set and long 55to 100-cm thin-wall needles are available from Cook, Inc., Bloomington, Ind. REFERENCES 1. Curry JL, Howland WJ: A simple arterial catheter inserter. Radiology 87:532, Sep 1966 2. Dotter CT, Judkins MP: Exit catheterization. Amer J Roentgen 100:459-465, Jun 1967 1 From

Journal

Radiology – Radiological Society of North America, Inc.

Published: May 1, 1970

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