Search Results - "Haaga, J. R."

Needle localization in MR-guided biopsy and aspiration: effects of field strength, sequence design, and magnetic field orientation by Lewin, JS, Duerk, JL, Jain, VR, Petersilge, CA, Chao, CP, Haaga, JR

“…The purpose of this investigation was to evaluate the accuracy of MR Imaging for needle depiction at 0.2 and 1.5 T with multiple pulse sequences and needle…”
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Semiquantitative imaging measurement of baseline and vasomodulated normal prostatic blood flow using sildenafil by HAAGA, J. R, EXNER, A, FEI, B, SEFTEL, A. D

“…The physiologic variability of blood flow to the prostate has not been studied until this time. We report the vasoactive effects of sildenafil and…”
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Radiation dose management: weighing risk versus benefit by Haaga, J R

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Metastases to the pancreas by Merkle, E M, Boaz, T, Kolokythas, O, Haaga, J R, Lewin, J S, Brambs, H J

“…Disparity in prognosis and management between primary and secondary pancreatic tumours makes recognition of metastases to the pancreas on CT and MRI an…”
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Interactive MR imaging-guided biopsy and aspiration with a modified clinical C-arm system by Lewin, JS, Petersilge, CA, Hatem, SF, Duerk, JL, Lenz, G, Clampitt, ME, Williams, ML, Kaczynski, KR, Lanzieri, CF, Wise, AL, Haaga, JR

“…This investigation was performed to test the hypotheses that interactive guidance of MR image acquisition during needle-directed procedures using a clinical…”
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Local carboplatin delivery and tissue distribution in livers after radiofrequency ablation by Szymanski-Exner, A., Gallacher, A., Stowe, N. T., Weinberg, B., Haaga, J. R., Gao, J.

“…This study investigated the local drug pharmacokinetics of intralesional drug delivery after radiofrequency ablation of the liver. We hypothesized that the…”
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Fluid flow during percutaneous drainage procedures: an in vitro study of the effects of fluid viscosity, catheter size, and adjunctive urokinase by Park, JK, Kraus, FC, Haaga, JR

“…An in vitro study was performed to determine the range of flow times of different bodily fluids through catheters of different diameters and to test the…”
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Safety of intracavitary urokinase with percutaneous abscess drainage by Lahorra, JM, Haaga, JR, Stellato, T, Flanigan, T, Graham, R

“…Percutaneous drainage of abscesses is an effective treatment, but the success rate is lower for abscesses that have septa and are multilocular. Several…”
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Liver biopsy: effects of biopsy needle caliber on bleeding and tissue recovery by Plecha, D M, Goodwin, D W, Rowland, D Y, Varnes, M E, Haaga, J R

“…To evaluate different-caliber biopsy cutting needles in terms of the benefits and potential risk of bleeding in a swine model. A total of 190 sequential liver…”
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Hepatic neoplasms: surgically relevant segmental anatomy and imaging techniques by Gazelle, GS, Haaga, JR

“…With advances in imaging and surgical techniques, the diagnosis and treatment of primary and secondary liver neoplasms have improved. Advances in imaging have…”
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Complications of no biopsy by Yohann, MM, Haaga, JR

“…We present three cases in which complications occurred after CT-guided procedures were not carried out, supporting the contention that some complications…”
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Pelvic abscesses: CT-guided transrectal drainage by Gazelle, G S, Haaga, J R, Stellato, T A, Gauderer, M W, Plecha, D T

“…Percutaneous drainage of pelvic abscesses has been performed by using a number of approaches, including transabdominal, transgluteal, and transrectal. The…”
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MR imaging in patients with metallic implants by Laakman, R W, Kaufman, B, Han, J S, Nelson, A D, Clampitt, M, O'Block, A M, Haaga, J R, Alfidi, R J

“…A total of 305 magnetic resonance (MR) examinations were performed in 236 patients with metallic implants. Most examinations were performed at 0.3 T. The…”
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CT-guided cutting-needle biopsies of selected chest lesions by Goralnik, CH, O'Connell, DM, el Yousef, SJ, Haaga, , JR

“…In an effort to improve on our diagnostic yield from percutaneous transthoracic biopsy, we used 14-gauge cutting needles in 56 selected patients. These…”
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Guided percutaneous biopsy of intraabdominal lesions by GAZELLE, G. S, HAAGA, J. R

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Preliminary experimental results in humans and animals with a superconducting, whole-body, nuclear magnetic resonance scanner by Alfidi, R J, Haaga, J R, El-Yousef, S J, Bryan, P J, Fletcher, B D, LiPuma, J P, Morrison, S C, Kaufman, B, Richey, J B, Hinshaw, W S, Kramer, D M, Yeung, H N, Cohen, A M, Butler, H E, Ament, A E, Lieberman, J M

“…In order to determine the clinical usefulness of nuclear magnetic resonance (NMR) imaging, the investigators examined a variety of normal volunteers, patients…”
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Modulation of O6-alkylguanine alkyltransferase-directed DNA repair in metastatic colon cancers by Willson, J K, Haaga, J R, Trey, J E, Stellato, T A, Gordon, N H, Gerson, S L

“…Carmustine (BCNU) resistance has been correlated with tumor expression of the DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (AT). It has been shown…”
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Focal xanthogranulomatous pyelonephritis simulating a renal tumor: CT characteristics by Shah, M, Haaga, J R

“…Xanthogranulomatous pyelonephritis is the replacement of renal parenchyma by large lipid-filled macrophages clinically associated with an enlarged,…”
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CT-guided percutaneous aspiration and drainage of abscesses by Haaga, , JR, Weinstein, AJ

“…CT-guided procedures were attempted in 103 patients suspected of having abscesses. CT-guided procedures were performed for diagnostic specimens in 70 patients;…”
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Clinical comparison of small-and large-caliber cutting needles for biopsy by Haaga, J R, LiPuma, J P, Bryan, P J, Balsara, V J, Cohen, A M

“…A 22 gauge "skinny core" (Madayag) biopsy needle, an 18 gauge Menghini needle, and a 14 gauge Tru-cut needle were compared in 51 patients. The Madayag needle…”
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