sodium-pertechnetate-tc-99m and Hematoma

Topics: Aged; Erythrocytes; Female; Hematoma; Humans; Radionuclide Imaging; Radiopharmaceuticals; Retroperitoneal Space; Sodium Pertechnetate Tc 99m

Although the scintigraphic detection of a few soft tissue hematomas have been reported, these usually have been serendipitous discoveries that were small and self-limited. The authors report a case of a large, rapidly expanding retroperitoneal hematoma that occurred following a left renal angioplasty. While the hematoma was initially detected by CT imaging, the precise source of the bleeding could not be definitively localized. Scintigraphy with labeled RBC cells, however, identified the left femoral artery puncture site as the bleeding source, which was subsequently surgically repaired.

Topics: Aged; Aged, 80 and over; Angioplasty; Erythrocytes; Female; Femoral Artery; Hematoma; Humans; Kidney; Punctures; Radionuclide Imaging; Renal Artery; Retroperitoneal Space; Sodium Pertechnetate Tc 99m

Topics: Adult; Athletic Injuries; Baseball; Hematoma; Humans; Male; Radionuclide Imaging; Scrotum; Sodium Pertechnetate Tc 99m; Wounds, Nonpenetrating

Scintigraphy with RBCs labeled with technetium Tc 99m sodium pertechnetate effectively located the source of hemorrhage in a patient receiving long-term anticoagulant therapy. (The patient was initially seen with a large hematoma on the flank.) More important, the procedure was used to monitor activity in this otherwise-occult bleeding site. Scintigraphic studies may be useful in the management of these difficult clinical problems.

Topics: Aged; Hematocrit; Hematoma; Hemorrhage; Humans; Male; Prothrombin Time; Sodium Pertechnetate Tc 99m; Technetium; Tomography, Emission-Computed; Warfarin

The technique of blood pool scanning was used to examine 15 hemophilic subjects. Employing an in vivo method for erythrocyte labeling with Technetium-99 m, a dynamic perfusion sequence is obtained using a scintillation camera positioned over the area to be examined. This demonstrates the vascularity of the tissue. Subsequently, equilibrium blood pool images of the area are obtained and analyzed with a densitometer to assess relative regional blood volume. In patients who were not bleeding but had chronic arthropathy, vascularity was not increased, and the blood volume of comparable joints was similar. By contrast, marked increases in vascularity and image density were observed in studies of acutely bleeding joints. Chronic hemarthroses were associated with persistent, but less marked increases in joint perfusion. Transient increases in joint vascularity were demonstrated after insertion of knee prostheses. In a patient with a thigh hematoma, the dimensions of the hemorrhage were clearly delineated. Since only a tracer dose of nuclide is infused intravenously, there are no allergic reactions or other side effects of the procedure. Blood pool scanning is a safe, non-invasive technique that augments clinical and radiographic evaluations, and provides a new dimension in the assessment of the hemophilic patient.

Topics: Acute Disease; Adolescent; Adult; Aged; Bioprosthesis; Child; Hemarthrosis; Hematoma; Hemophilia A; Hemorrhage; Humans; Knee; Knee Joint; Middle Aged; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Technetium; Thigh; Tin Polyphosphates

We perform scinti-angiography regularly in suspected cases of dissecting aneurysms. In our experience, the dissection is well demonstrated by this method. In correctly selected cases, scinti-angiography is a method which is well tolerated by the patient and which carries very little risk, since the complications due to contrast media are absent.

Topics: Aortic Aneurysm; Aortic Dissection; Aortography; Arteriosclerosis; Diagnosis, Differential; Hematoma; Humans; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Technetium; Tomography, X-Ray Computed